CH628922A5 - Process for the preparation of 2-(disubstituted methyl)-5-aminobenzoic acids and their phthalides, and use of these substances - Google Patents

Process for the preparation of 2-(disubstituted methyl)-5-aminobenzoic acids and their phthalides, and use of these substances Download PDF

Info

Publication number: CH628922A5
Authority: CH; Switzerland
Prior art keywords: acid; methyl; formula; indolyl; phenyl
Prior art date: 1976-09-24

Application number

CH1165477A

Other languages

English (en)

French (fr)

Inventor

Paul Joseph Schmidt

Nathan Norman Crounse

Original Assignee

Sterling Drug Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1976-09-24

Filing date

1977-09-23

Publication date

1982-03-31

1977-09-23 Application filed by Sterling Drug Inc filed Critical Sterling Drug Inc

1982-03-31 Publication of CH628922A5 publication Critical patent/CH628922A5/fr

Links

-1 2-(disubstituted methyl)-5-aminobenzoic acids Chemical class 0.000 title description 152
238000000034 method Methods 0.000 title description 84
238000002360 preparation method Methods 0.000 title description 17
239000000126 substance Substances 0.000 title description 15
125000005506 phthalide group Chemical group 0.000 title description 4
239000002253 acid Substances 0.000 description 146
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 144
125000004432 carbon atom Chemical group C* 0.000 description 80
239000007787 solid Substances 0.000 description 79
239000000047 product Substances 0.000 description 72
239000000243 solution Substances 0.000 description 66
150000001875 compounds Chemical class 0.000 description 64
125000000217 alkyl group Chemical group 0.000 description 62
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 47
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 40
WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 39
238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 38
125000004435 hydrogen atom Chemical group [H]* 0.000 description 36
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 31
239000004927 clay Substances 0.000 description 31
239000000203 mixture Substances 0.000 description 29
JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 27
WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 27
238000002844 melting Methods 0.000 description 27
230000008018 melting Effects 0.000 description 27
238000001914 filtration Methods 0.000 description 26
125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 24
JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 24
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 23
125000003545 alkoxy group Chemical group 0.000 description 23
239000003795 chemical substances by application Substances 0.000 description 23
239000000155 melt Substances 0.000 description 22
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
NEGFNJRAUMCZMY-UHFFFAOYSA-N 3-(dimethylamino)benzoic acid Chemical compound CN(C)C1=CC=CC(C(O)=O)=C1 NEGFNJRAUMCZMY-UHFFFAOYSA-N 0.000 description 20
239000005011 phenolic resin Substances 0.000 description 20
229920001568 phenolic resin Polymers 0.000 description 20
KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 19
239000002243 precursor Substances 0.000 description 19
239000000741 silica gel Substances 0.000 description 18
229910002027 silica gel Inorganic materials 0.000 description 18
238000006243 chemical reaction Methods 0.000 description 16
125000005843 halogen group Chemical group 0.000 description 16
XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 16
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 15
229910052739 hydrogen Inorganic materials 0.000 description 15
239000001257 hydrogen Substances 0.000 description 15
239000005711 Benzoic acid Substances 0.000 description 14
125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 14
229910052799 carbon Inorganic materials 0.000 description 14
125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 14
238000002329 infrared spectrum Methods 0.000 description 14
238000010183 spectrum analysis Methods 0.000 description 14
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
125000004663 dialkyl amino group Chemical group 0.000 description 13
WNZQDUSMALZDQF-UHFFFAOYSA-N 2-benzofuran-1(3H)-one Chemical compound C1=CC=C2C(=O)OCC2=C1 WNZQDUSMALZDQF-UHFFFAOYSA-N 0.000 description 12
TYIHCISAZQHKHT-UHFFFAOYSA-N 6-(dimethylamino)-3-[4-(dimethylamino)phenyl]-3h-2-benzofuran-1-one Chemical compound C1=CC(N(C)C)=CC=C1C1C2=CC=C(N(C)C)C=C2C(=O)O1 TYIHCISAZQHKHT-UHFFFAOYSA-N 0.000 description 12
235000010233 benzoic acid Nutrition 0.000 description 12
ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 12
239000011592 zinc chloride Substances 0.000 description 12
235000005074 zinc chloride Nutrition 0.000 description 12
229960000583 acetic acid Drugs 0.000 description 11
ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical group C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 11
229910052736 halogen Inorganic materials 0.000 description 11
229910052757 nitrogen Inorganic materials 0.000 description 11
UXUKPVBNYDEJHH-UHFFFAOYSA-N 5-(dimethylamino)-2-methylbenzoic acid Chemical compound CN(C)C1=CC=C(C)C(C(O)=O)=C1 UXUKPVBNYDEJHH-UHFFFAOYSA-N 0.000 description 10
SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 10
230000002378 acidificating effect Effects 0.000 description 10
VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 10
150000002367 halogens Chemical class 0.000 description 10
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 10
230000003647 oxidation Effects 0.000 description 10
238000007254 oxidation reaction Methods 0.000 description 10
238000010992 reflux Methods 0.000 description 10
WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 9
235000011054 acetic acid Nutrition 0.000 description 9
239000007864 aqueous solution Substances 0.000 description 9
238000001816 cooling Methods 0.000 description 9
239000000725 suspension Substances 0.000 description 9
XMOWAIVXKJWQBJ-UHFFFAOYSA-N 1-ethyl-2-methylindole Chemical compound C1=CC=C2N(CC)C(C)=CC2=C1 XMOWAIVXKJWQBJ-UHFFFAOYSA-N 0.000 description 8
IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 8
238000003756 stirring Methods 0.000 description 8
150000007513 acids Chemical class 0.000 description 7
125000004429 atom Chemical group 0.000 description 7
239000002585 base Substances 0.000 description 7
239000000543 intermediate Substances 0.000 description 7
239000003094 microcapsule Substances 0.000 description 7
238000012360 testing method Methods 0.000 description 7
CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
IPAJDLMMTVZVPP-UHFFFAOYSA-N Crystal violet lactone Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C=CC(=CC=2)N(C)C)C2=CC=C(N(C)C)C=C2C(=O)O1 IPAJDLMMTVZVPP-UHFFFAOYSA-N 0.000 description 6
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
229960004050 aminobenzoic acid Drugs 0.000 description 6
150000001491 aromatic compounds Chemical class 0.000 description 6
125000003118 aryl group Chemical group 0.000 description 6
HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 6
239000002775 capsule Substances 0.000 description 6
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
239000012153 distilled water Substances 0.000 description 6
238000002955 isolation Methods 0.000 description 6
239000010410 layer Substances 0.000 description 6
BTFQKIATRPGRBS-UHFFFAOYSA-N o-tolualdehyde Chemical compound CC1=CC=CC=C1C=O BTFQKIATRPGRBS-UHFFFAOYSA-N 0.000 description 6
XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 6
150000003254 radicals Chemical class 0.000 description 6
239000012429 reaction media Substances 0.000 description 6
239000012258 stirred mixture Substances 0.000 description 6
LFZLVJBOEONQHV-UHFFFAOYSA-N 1-n,1-n,3-n,3-n-tetramethylbenzene-1,3-diamine Chemical compound CN(C)C1=CC=CC(N(C)C)=C1 LFZLVJBOEONQHV-UHFFFAOYSA-N 0.000 description 5
WVSPCAHHSFSZOC-UHFFFAOYSA-N 3-[2,4-bis(dimethylamino)phenyl]-6-(dimethylamino)-3-[4-(dimethylamino)phenyl]-2-benzofuran-1-one Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C(=CC(=CC=2)N(C)C)N(C)C)C2=CC=C(N(C)C)C=C2C(=O)O1 WVSPCAHHSFSZOC-UHFFFAOYSA-N 0.000 description 5
125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 description 5
229920002472 Starch Polymers 0.000 description 5
125000003342 alkenyl group Chemical group 0.000 description 5
229910052801 chlorine Chemical group 0.000 description 5
238000009833 condensation Methods 0.000 description 5
230000005494 condensation Effects 0.000 description 5
238000001035 drying Methods 0.000 description 5
150000002391 heterocyclic compounds Chemical class 0.000 description 5
125000000623 heterocyclic group Chemical group 0.000 description 5
PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 5
RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 5
230000003993 interaction Effects 0.000 description 5
125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 5
BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 5
239000011541 reaction mixture Substances 0.000 description 5
239000002904 solvent Substances 0.000 description 5
239000008107 starch Substances 0.000 description 5
235000019698 starch Nutrition 0.000 description 5
BJMUOUXGBFNLSN-UHFFFAOYSA-N 1,2-dimethylindole Chemical compound C1=CC=C2N(C)C(C)=CC2=C1 BJMUOUXGBFNLSN-UHFFFAOYSA-N 0.000 description 4
125000001617 2,3-dimethoxy phenyl group Chemical group [H]C1=C([H])C(*)=C(OC([H])([H])[H])C(OC([H])([H])[H])=C1[H] 0.000 description 4
BQGGOSXJLSPVRH-UHFFFAOYSA-N 2-[bis[4-(dimethylamino)phenyl]methyl]-5-(dimethylamino)benzoic acid Chemical compound C1=CC(N(C)C)=CC=C1C(C=1C(=CC(=CC=1)N(C)C)C(O)=O)C1=CC=C(N(C)C)C=C1 BQGGOSXJLSPVRH-UHFFFAOYSA-N 0.000 description 4
125000000175 2-thienyl group Chemical group S1C([*])=C([H])C([H])=C1[H] 0.000 description 4
MZIJZGBTHCGQSP-UHFFFAOYSA-N 3-(2,4-dimethoxyphenyl)-6-(dimethylamino)-3h-2-benzofuran-1-one Chemical compound COC1=CC(OC)=CC=C1C1C2=CC=C(N(C)C)C=C2C(=O)O1 MZIJZGBTHCGQSP-UHFFFAOYSA-N 0.000 description 4
BGNGWHSBYQYVRX-UHFFFAOYSA-N 4-(dimethylamino)benzaldehyde Chemical compound CN(C)C1=CC=C(C=O)C=C1 BGNGWHSBYQYVRX-UHFFFAOYSA-N 0.000 description 4
125000006283 4-chlorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Cl)C([H])([H])* 0.000 description 4
125000006181 4-methyl benzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])C([H])([H])* 0.000 description 4
ZKTDSKYWMUAXQT-UHFFFAOYSA-N 6-(dimethylamino)-3-(1-ethyl-2-methylindol-3-yl)-3h-2-benzofuran-1-one Chemical compound C12=CC=CC=C2N(CC)C(C)=C1C1C2=CC=C(N(C)C)C=C2C(=O)O1 ZKTDSKYWMUAXQT-UHFFFAOYSA-N 0.000 description 4
BPPBBKGVWKOZFX-UHFFFAOYSA-N 6-(dimethylamino)-3-(4-methoxyphenyl)-3h-2-benzofuran-1-one Chemical compound C1=CC(OC)=CC=C1C1C2=CC=C(N(C)C)C=C2C(=O)O1 BPPBBKGVWKOZFX-UHFFFAOYSA-N 0.000 description 4
101150046236 CNR1 gene Proteins 0.000 description 4
AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 4
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
229910021578 Iron(III) chloride Inorganic materials 0.000 description 4
AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 4
KNDUGOWIKQAXHL-UHFFFAOYSA-N N-Isopropyl-Pyrrole Natural products CC(C)N1C=CC=C1 KNDUGOWIKQAXHL-UHFFFAOYSA-N 0.000 description 4
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
241000219095 Vitis Species 0.000 description 4
235000009754 Vitis X bourquina Nutrition 0.000 description 4
235000012333 Vitis X labruscana Nutrition 0.000 description 4
235000014787 Vitis vinifera Nutrition 0.000 description 4
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
239000011260 aqueous acid Substances 0.000 description 4
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
239000000460 chlorine Substances 0.000 description 4
239000000706 filtrate Substances 0.000 description 4
238000010438 heat treatment Methods 0.000 description 4
RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
238000001819 mass spectrum Methods 0.000 description 4
125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 4
239000012044 organic layer Substances 0.000 description 4
229910052760 oxygen Inorganic materials 0.000 description 4
239000001301 oxygen Substances 0.000 description 4
ZRSNZINYAWTAHE-UHFFFAOYSA-N p-methoxybenzaldehyde Chemical compound COC1=CC=C(C=O)C=C1 ZRSNZINYAWTAHE-UHFFFAOYSA-N 0.000 description 4
SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 description 4
125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
229910052726 zirconium Inorganic materials 0.000 description 4
WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 3
LOBSLLOTZXAAPI-UHFFFAOYSA-N 1-n,1-n,3-n,3-n-tetraethylbenzene-1,3-diamine Chemical compound CCN(CC)C1=CC=CC(N(CC)CC)=C1 LOBSLLOTZXAAPI-UHFFFAOYSA-N 0.000 description 3
PKZJLOCLABXVMC-UHFFFAOYSA-N 2-Methoxybenzaldehyde Chemical compound COC1=CC=CC=C1C=O PKZJLOCLABXVMC-UHFFFAOYSA-N 0.000 description 3
ZBACAXKACWJQKR-UHFFFAOYSA-N 2-[[2,4-bis(dimethylamino)phenyl]-[4-(dimethylamino)phenyl]methyl]-5-(dimethylamino)benzoic acid Chemical compound C1=CC(N(C)C)=CC=C1C(C=1C(=CC(=CC=1)N(C)C)C(O)=O)C1=CC=C(N(C)C)C=C1N(C)C ZBACAXKACWJQKR-UHFFFAOYSA-N 0.000 description 3
CSDSSGBPEUDDEE-UHFFFAOYSA-N 2-formylpyridine Chemical compound O=CC1=CC=CC=N1 CSDSSGBPEUDDEE-UHFFFAOYSA-N 0.000 description 3
239000001431 2-methylbenzaldehyde Substances 0.000 description 3
XSRLHGSAMGVDJU-UHFFFAOYSA-N 2-propan-2-yl-1h-indole Chemical compound C1=CC=C2NC(C(C)C)=CC2=C1 XSRLHGSAMGVDJU-UHFFFAOYSA-N 0.000 description 3
125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
125000006281 4-bromobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Br)C([H])([H])* 0.000 description 3
KPASYSIMJPISPX-UHFFFAOYSA-N 6-(dimethylamino)-3-(2-methoxyphenyl)-3h-2-benzofuran-1-one Chemical compound COC1=CC=CC=C1C1C2=CC=C(N(C)C)C=C2C(=O)O1 KPASYSIMJPISPX-UHFFFAOYSA-N 0.000 description 3
JARQTVAUFHZBCM-UHFFFAOYSA-N 6-(dimethylamino)-3-(4-ethoxyphenyl)-3h-2-benzofuran-1-one Chemical compound C1=CC(OCC)=CC=C1C1C2=CC=C(N(C)C)C=C2C(=O)O1 JARQTVAUFHZBCM-UHFFFAOYSA-N 0.000 description 3
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
239000005909 Kieselgur Substances 0.000 description 3
239000000908 ammonium hydroxide Substances 0.000 description 3
150000001559 benzoic acids Chemical class 0.000 description 3
125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
239000003153 chemical reaction reagent Substances 0.000 description 3
MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 3
238000007796 conventional method Methods 0.000 description 3
238000004821 distillation Methods 0.000 description 3
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
150000004820 halides Chemical class 0.000 description 3
229910052500 inorganic mineral Inorganic materials 0.000 description 3
150000002596 lactones Chemical class 0.000 description 3
XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
229910052808 lithium carbonate Inorganic materials 0.000 description 3
235000010755 mineral Nutrition 0.000 description 3
239000011707 mineral Substances 0.000 description 3
VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
150000002894 organic compounds Chemical class 0.000 description 3
239000003960 organic solvent Substances 0.000 description 3
230000001590 oxidative effect Effects 0.000 description 3
QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 3
ZWLUXSQADUDCSB-UHFFFAOYSA-N phthalaldehyde Chemical compound O=CC1=CC=CC=C1C=O ZWLUXSQADUDCSB-UHFFFAOYSA-N 0.000 description 3
229920005989 resin Polymers 0.000 description 3
239000011347 resin Substances 0.000 description 3
239000012266 salt solution Substances 0.000 description 3
HYGUWHAXRMPCCP-UHFFFAOYSA-N 1,2-dimethylindole-3-carbaldehyde Chemical compound C1=CC=C2N(C)C(C)=C(C=O)C2=C1 HYGUWHAXRMPCCP-UHFFFAOYSA-N 0.000 description 2
GHPFVEIYABXUGH-UHFFFAOYSA-N 1-(3-methylbutyl)indole Chemical compound C1=CC=C2N(CCC(C)C)C=CC2=C1 GHPFVEIYABXUGH-UHFFFAOYSA-N 0.000 description 2
OUKQTRFCDKSEPL-UHFFFAOYSA-N 1-Methyl-2-pyrrolecarboxaldehyde Chemical compound CN1C=CC=C1C=O OUKQTRFCDKSEPL-UHFFFAOYSA-N 0.000 description 2
OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical compound CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 description 2
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OBCVUTCTTKCQRR-UHFFFAOYSA-N 6-chloro-2-phenyl-1h-indole Chemical compound N1C2=CC(Cl)=CC=C2C=C1C1=CC=CC=C1 OBCVUTCTTKCQRR-UHFFFAOYSA-N 0.000 description 1
ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
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IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 1
229910015900 BF3 Inorganic materials 0.000 description 1
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ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
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238000013019 agitation Methods 0.000 description 1
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239000003637 basic solution Substances 0.000 description 1
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239000005457 ice water Substances 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
238000010348 incorporation Methods 0.000 description 1
229910010272 inorganic material Inorganic materials 0.000 description 1
229910052740 iodine Inorganic materials 0.000 description 1
239000011630 iodine Substances 0.000 description 1
HEJPGFRXUXOTGM-UHFFFAOYSA-K iron(3+);triiodide Chemical compound [Fe+3].[I-].[I-].[I-] HEJPGFRXUXOTGM-UHFFFAOYSA-K 0.000 description 1
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239000007788 liquid Substances 0.000 description 1
238000004949 mass spectrometry Methods 0.000 description 1
238000002156 mixing Methods 0.000 description 1
125000000896 monocarboxylic acid group Chemical group 0.000 description 1
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125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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239000002245 particle Substances 0.000 description 1
239000012071 phase Substances 0.000 description 1
150000002990 phenothiazines Chemical class 0.000 description 1
229910052698 phosphorus Inorganic materials 0.000 description 1
239000011574 phosphorus Substances 0.000 description 1
UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
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229920000137 polyphosphoric acid Polymers 0.000 description 1
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230000000750 progressive effect Effects 0.000 description 1
235000019260 propionic acid Nutrition 0.000 description 1
108090000623 proteins and genes Proteins 0.000 description 1
QJZUKDFHGGYHMC-UHFFFAOYSA-N pyridine-3-carbaldehyde Chemical compound O=CC1=CC=CN=C1 QJZUKDFHGGYHMC-UHFFFAOYSA-N 0.000 description 1
IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
210000004994 reproductive system Anatomy 0.000 description 1
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229910000029 sodium carbonate Inorganic materials 0.000 description 1
241000894007 species Species 0.000 description 1
239000007858 starting material Substances 0.000 description 1
125000001424 substituent group Chemical group 0.000 description 1
239000008399 tap water Substances 0.000 description 1
235000020679 tap water Nutrition 0.000 description 1
LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 1
PUGUQINMNYINPK-UHFFFAOYSA-N tert-butyl 4-(2-chloroacetyl)piperazine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCN(C(=O)CCl)CC1 PUGUQINMNYINPK-UHFFFAOYSA-N 0.000 description 1
229950011008 tetrachloroethylene Drugs 0.000 description 1
LTSUHJWLSNQKIP-UHFFFAOYSA-J tin(iv) bromide Chemical compound Br[Sn](Br)(Br)Br LTSUHJWLSNQKIP-UHFFFAOYSA-J 0.000 description 1
XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
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Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/32—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D207/33—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms with substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D207/337—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/132—Chemical colour-forming components; Additives or binders therefor
- B41M5/136—Organic colour formers, e.g. leuco dyes
- B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/10—Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
- C07D209/18—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D209/20—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals substituted additionally by nitrogen atoms, e.g. tryptophane
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/86—Carbazoles; Hydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/88—Benzo [c] furans; Hydrogenated benzo [c] furans with one oxygen atom directly attached in position 1 or 3
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D455/00—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
- C07D455/03—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
- C07D455/04—Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/06—Peri-condensed systems

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Heat Sensitive Colour Forming Recording (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Indole Compounds (AREA)
Color Printing (AREA)
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Furan Compounds (AREA)
Nitrogen Condensed Heterocyclic Rings (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
Pyridine Compounds (AREA)
Heterocyclic Compounds Containing Sulfur Atoms (AREA)

CH1165477A 1976-09-24 1977-09-23 Process for the preparation of 2-(disubstituted methyl)-5-aminobenzoic acids and their phthalides, and use of these substances CH628922A5 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US72648276A	1976-09-24	1976-09-24
US79354477A	1977-05-04	1977-05-04

Publications (1)

Publication Number	Publication Date
CH628922A5 true CH628922A5 (en)	1982-03-31

Family

ID=27111327

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1165477A CH628922A5 (en)	1976-09-24	1977-09-23	Process for the preparation of 2-(disubstituted methyl)-5-aminobenzoic acids and their phthalides, and use of these substances

Country Status (17)

Country	Link
JP (1)	JPS5356224A (da)
AR (1)	AR224099A1 (da)
AU (1)	AU517656B2 (da)
BE (1)	BE858929A (da)
BR (1)	BR7706358A (da)
CA (1)	CA1088938A (da)
CH (1)	CH628922A5 (da)
DE (1)	DE2742909A1 (da)
DK (1)	DK422577A (da)
ES (1)	ES462577A1 (da)
FR (3)	FR2371418A1 (da)
GB (3)	GB1590914A (da)
IE (1)	IE45772B1 (da)
IT (1)	IT1198303B (da)
LU (1)	LU78163A1 (da)
MX (1)	MX149663A (da)
NL (1)	NL7710326A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4189171A (en) *	1977-03-01	1980-02-19	Sterling Drug Inc.	Marking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalides
US4275206A (en) *	1979-03-05	1981-06-23	Appleton Papers Inc.	Lactone compounds containing an indolizine radical
US4920220A (en) *	1987-11-12	1990-04-24	Ciba-Geigy Corporation	Chromogenic 1-heterocyclic substituted 2,4-benzoxazines
WO2014161849A1 (en) *	2013-04-02	2014-10-09	Syngenta Participations Ag	Insecticidal compounds
TW201922942A (zh) *	2017-10-12	2019-06-16	美商美力肯及公司	三芳基甲烷隱色化合物及包含其之組成物
JP2024143725A (ja) *	2023-03-30	2024-10-11	富士フイルム株式会社	機上現像型平版印刷版原版、平版印刷版の作製方法、及び、平版印刷方法
JP2024143724A (ja) *	2023-03-30	2024-10-11	富士フイルム株式会社	機上現像型平版印刷版原版、平版印刷版の作製方法、平版印刷方法、及び化合物

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS525746A (en) *	1975-07-03	1977-01-17	Kanzaki Paper Mfg Co Ltd	Novel process for preparation of triarymethane derivatives

1976
- 1976-09-23 ES ES462577A patent/ES462577A1/es not_active Expired
1977
- 1977-09-13 GB GB1677779A patent/GB1590914A/en not_active Expired
- 1977-09-13 IE IE188777A patent/IE45772B1/en unknown
- 1977-09-13 GB GB1677879A patent/GB1590915A/en not_active Expired
- 1977-09-13 GB GB3813377A patent/GB1590913A/en not_active Expired
- 1977-09-14 CA CA286,689A patent/CA1088938A/en not_active Expired
- 1977-09-19 MX MX17061077A patent/MX149663A/es unknown
- 1977-09-20 NL NL7710326A patent/NL7710326A/xx not_active Application Discontinuation
- 1977-09-21 AU AU28994/77A patent/AU517656B2/en not_active Expired
- 1977-09-22 LU LU78163A patent/LU78163A1/xx unknown
- 1977-09-22 FR FR7728585A patent/FR2371418A1/fr not_active Withdrawn
- 1977-09-22 AR AR26929677A patent/AR224099A1/es active
- 1977-09-22 BE BE1008390A patent/BE858929A/xx unknown
- 1977-09-23 CH CH1165477A patent/CH628922A5/fr not_active IP Right Cessation
- 1977-09-23 BR BR7706358A patent/BR7706358A/pt unknown
- 1977-09-23 DK DK422577A patent/DK422577A/da not_active Application Discontinuation
- 1977-09-23 DE DE19772742909 patent/DE2742909A1/de not_active Withdrawn
- 1977-09-23 IT IT2790077A patent/IT1198303B/it active
- 1977-09-24 JP JP11505177A patent/JPS5356224A/ja active Pending
1978
- 1978-02-07 FR FR7803370A patent/FR2368466A1/fr not_active Withdrawn
- 1978-02-07 FR FR7803371A patent/FR2368486A1/fr not_active Withdrawn

Also Published As

Publication number	Publication date
DE2742909A1 (de)	1978-03-30
GB1590915A (en)	1981-06-10
IT1198303B (it)	1988-12-21
JPS5356224A (en)	1978-05-22
LU78163A1 (da)	1978-06-01
ES462577A1 (es)	1978-07-16
FR2368466A1 (fr)	1978-05-19
MX149663A (es)	1983-12-09
NL7710326A (nl)	1978-03-29
GB1590914A (en)	1981-06-10
IE45772B1 (en)	1982-11-17
BR7706358A (pt)	1978-06-06
BE858929A (fr)	1978-03-22
FR2368486A1 (fr)	1978-05-19
AR224099A1 (es)	1981-10-30
GB1590913A (en)	1981-06-10
IE771887L (en)	1978-03-24
FR2371418A1 (fr)	1978-06-16
AU2899477A (en)	1979-03-29
DK422577A (da)	1978-03-25
AU517656B2 (en)	1981-08-20
CA1088938A (en)	1980-11-04

Legal Events

Date	Code	Title	Description
1990-11-15	PUE	Assignment	Owner name: THE HILTON - DAVIS CHEMICAL COMPANY
1997-05-15	PL	Patent ceased

Publication	Publication Date	Title
US4257954A (en)	1981-03-24	Novel compounds, processes and marking systems
CH635835A5 (fr)	1983-04-29	3-aryl-3-heterylphtalides et 3,3-bis-(heteroaryl)-phtalides, leur preparation et leur utilisation comme precurseurs de couleurs.
US4820841A (en)	1989-04-11	Chromogenic quinoline compounds
FR2553425A1 (fr)	1985-04-19	Nouveaux composes d'azaphtalide chromogene et materiau d'enregistrement sensible a la pression comportant ces composes
FR2481286A1 (fr)	1981-10-30	Matiere chromogene de la classe des azaphtalides, son procede de preparation, solution chromogene et support d'enregistrement la contenant
IE45772B1 (en)	1982-11-17	Process for preparing phthalide color-formers and novel substituted 5-aminobenzoic acid derivatives
CH620926A5 (da)	1980-12-31
BE878124A (fr)	1980-02-07	Derives d'acide arylsulfinique de composes aliphatiques, aromatiques ou heterocycliques, leur preparation et leur utilisation comme precurseurs de couleurs
US4732991A (en)	1988-03-22	Substituted phthalides
US4595768A (en)	1986-06-17	3-(substituted phenyl)phthalides
US4403791A (en)	1983-09-13	Carbonless duplicating and marking systems
US4251446A (en)	1981-02-17	Phthalide compounds, processes and marking systems
US4451657A (en)	1984-05-29	3,5- And 5,5-bis(3-indolyl)-2-(5H)furanones
CH628923A5 (en)	1982-03-31	Preparation and use of 3-(diphenylamino)phthalides
CH647241A5 (fr)	1985-01-15	Derives de fluorane.
US4283077A (en)	1981-08-11	Indole color former
JPH0237312B2 (da)	1990-08-23
US4322352A (en)	1982-03-30	Indolyl phthalide compounds
US4351768A (en)	1982-09-28	2-[(3-Indolyl)carbonyl]-4/5-carboxybenzoic acids
US4494989A (en)	1985-01-22	Compounds, processes and marking systems
US4477676A (en)	1984-10-16	4-(3-Indolyl)-2,3-dichloro-4-oxo-2-butenoic acids
US4377698A (en)	1983-03-22	2,4 Bis(2-indolyl-3)-4-oxobutanoic acids
US4697018A (en)	1987-09-29	9-julolidinyl derivatives and process of preparing them
US4558137A (en)	1985-12-10	Bis phenyl (2 carboxylic acid or ester indol-3-yl)methanes
US5364830A (en)	1994-11-15	Record material using vinyl carbinol color formers