CH402835A - Procédé de préparation d'hydroxybenzaldéhydes - Google Patents

Procédé de préparation d'hydroxybenzaldéhydes

Info

Publication number: CH402835A
Authority: CH; Switzerland
Prior art keywords: oxygen; palladium; phenol; oxidation; alcohol
Prior art date: 1962-05-02

Application number

CH541863A

Other languages

English (en)

French (fr)

Inventor

Robert Marchand Pierre Andre

Grenet Jean-Baptiste

Original Assignee

Rhone Poulenc Sa

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.)

1962-05-02

Filing date

1963-04-30

Publication date

1965-11-30

1963-04-30 Application filed by Rhone Poulenc Sa filed Critical Rhone Poulenc Sa

1965-11-30 Publication of CH402835A publication Critical patent/CH402835A/fr

Links

SMQUZDBALVYZAC-UHFFFAOYSA-N salicylaldehyde Chemical class OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 title description 10
238000004519 manufacturing process Methods 0.000 title description 2
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 23
238000000034 method Methods 0.000 claims description 20
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
229910052760 oxygen Inorganic materials 0.000 claims description 19
239000001301 oxygen Substances 0.000 claims description 19
150000001875 compounds Chemical class 0.000 claims description 16
230000003647 oxidation Effects 0.000 claims description 13
238000007254 oxidation reaction Methods 0.000 claims description 13
HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 13
KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 12
239000004327 boric acid Substances 0.000 claims description 12
239000007864 aqueous solution Substances 0.000 claims description 11
-1 alkyloxy radicals Chemical class 0.000 claims description 10
229910052763 palladium Inorganic materials 0.000 claims description 10
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 7
239000012736 aqueous medium Substances 0.000 claims description 6
239000002609 medium Substances 0.000 claims description 6
125000000217 alkyl group Chemical group 0.000 claims description 5
238000002360 preparation method Methods 0.000 claims description 5
125000001424 substituent group Chemical group 0.000 claims description 5
125000005843 halogen group Chemical group 0.000 claims description 4
125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
239000007789 gas Substances 0.000 claims description 3
239000000203 mixture Substances 0.000 claims description 3
239000007800 oxidant agent Substances 0.000 claims description 2
150000003254 radicals Chemical class 0.000 claims description 2
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 24
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 13
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 12
238000006243 chemical reaction Methods 0.000 description 11
239000003054 catalyst Substances 0.000 description 10
CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 description 10
239000000047 product Substances 0.000 description 9
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
150000001299 aldehydes Chemical class 0.000 description 6
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
239000002253 acid Substances 0.000 description 5
239000003795 chemical substances by application Substances 0.000 description 5
229910052697 platinum Inorganic materials 0.000 description 5
239000000243 solution Substances 0.000 description 5
238000010521 absorption reaction Methods 0.000 description 4
UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
230000015572 biosynthetic process Effects 0.000 description 3
WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
238000000926 separation method Methods 0.000 description 3
HMNKTRSOROOSPP-UHFFFAOYSA-N 3-Ethylphenol Chemical compound CCC1=CC=CC(O)=C1 HMNKTRSOROOSPP-UHFFFAOYSA-N 0.000 description 2
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 description 2
HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
239000006229 carbon black Substances 0.000 description 2
230000003197 catalytic effect Effects 0.000 description 2
JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
229910052500 inorganic mineral Inorganic materials 0.000 description 2
NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
239000011707 mineral Substances 0.000 description 2
235000010755 mineral Nutrition 0.000 description 2
IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
239000002904 solvent Substances 0.000 description 2
238000003756 stirring Methods 0.000 description 2
239000000725 suspension Substances 0.000 description 2
MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 2
FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 2
BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical group C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 description 1
QLOKJRIVRGCVIM-UHFFFAOYSA-N 1-[(4-methylsulfanylphenyl)methyl]piperazine Chemical compound C1=CC(SC)=CC=C1CN1CCNCC1 QLOKJRIVRGCVIM-UHFFFAOYSA-N 0.000 description 1
DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical class CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
MOEFFSWKSMRFRQ-UHFFFAOYSA-N 2-ethoxyphenol Chemical compound CCOC1=CC=CC=C1O MOEFFSWKSMRFRQ-UHFFFAOYSA-N 0.000 description 1
ILEIUTCVWLYZOM-UHFFFAOYSA-N 2-hydroxy-5-methylbenzaldehyde Chemical compound CC1=CC=C(O)C(C=O)=C1 ILEIUTCVWLYZOM-UHFFFAOYSA-N 0.000 description 1
WLZCXHMBJHCRFH-UHFFFAOYSA-N 2-methoxy-3-methylbenzene-1,4-diol Chemical compound COC1=C(C)C(O)=CC=C1O WLZCXHMBJHCRFH-UHFFFAOYSA-N 0.000 description 1
DOHOPUBZLWVZMZ-UHFFFAOYSA-N 3-chloro-2-hydroxybenzaldehyde Chemical compound OC1=C(Cl)C=CC=C1C=O DOHOPUBZLWVZMZ-UHFFFAOYSA-N 0.000 description 1
OFQBYHLLIJGMNP-UHFFFAOYSA-N 3-ethoxy-2-hydroxybenzaldehyde Chemical compound CCOC1=CC=CC(C=O)=C1O OFQBYHLLIJGMNP-UHFFFAOYSA-N 0.000 description 1
IPPQNXSAJZOTJZ-UHFFFAOYSA-N 3-methylsalicylaldehyde Chemical compound CC1=CC=CC(C=O)=C1O IPPQNXSAJZOTJZ-UHFFFAOYSA-N 0.000 description 1
KLSLBUSXWBJMEC-UHFFFAOYSA-N 4-Propylphenol Chemical class CCCC1=CC=C(O)C=C1 KLSLBUSXWBJMEC-UHFFFAOYSA-N 0.000 description 1
WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical class OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
HXDOZKJGKXYMEW-UHFFFAOYSA-N 4-ethylphenol Chemical class CCC1=CC=C(O)C=C1 HXDOZKJGKXYMEW-UHFFFAOYSA-N 0.000 description 1
ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
239000005711 Benzoic acid Substances 0.000 description 1
BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
238000005684 Liebig rearrangement reaction Methods 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
YKIOKAURTKXMSB-UHFFFAOYSA-N adams's catalyst Chemical compound O=[Pt]=O YKIOKAURTKXMSB-UHFFFAOYSA-N 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
150000008044 alkali metal hydroxides Chemical class 0.000 description 1
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
125000003118 aryl group Chemical group 0.000 description 1
239000010425 asbestos Substances 0.000 description 1
235000010233 benzoic acid Nutrition 0.000 description 1
229910021538 borax Inorganic materials 0.000 description 1
GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
229910052794 bromium Inorganic materials 0.000 description 1
125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
BAAYWLNVHTVAJJ-UHFFFAOYSA-L cadmium(2+);diformate Chemical compound [Cd+2].[O-]C=O.[O-]C=O BAAYWLNVHTVAJJ-UHFFFAOYSA-L 0.000 description 1
229910000019 calcium carbonate Inorganic materials 0.000 description 1
125000004432 carbon atom Chemical group C* 0.000 description 1
150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 1
239000003153 chemical reaction reagent Substances 0.000 description 1
239000000460 chlorine Substances 0.000 description 1
229910052801 chlorine Inorganic materials 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
238000006482 condensation reaction Methods 0.000 description 1
150000001896 cresols Chemical class 0.000 description 1
238000010908 decantation Methods 0.000 description 1
238000004821 distillation Methods 0.000 description 1
238000001035 drying Methods 0.000 description 1
230000032050 esterification Effects 0.000 description 1
238000005886 esterification reaction Methods 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
239000012456 homogeneous solution Substances 0.000 description 1
238000002955 isolation Methods 0.000 description 1
RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000000463 material Substances 0.000 description 1
229940100630 metacresol Drugs 0.000 description 1
QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
229910003445 palladium oxide Inorganic materials 0.000 description 1
JQPTYAILLJKUCY-UHFFFAOYSA-N palladium(ii) oxide Chemical compound [O-2].[Pd+2] JQPTYAILLJKUCY-UHFFFAOYSA-N 0.000 description 1
QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
229920000642 polymer Polymers 0.000 description 1
229940072033 potash Drugs 0.000 description 1
BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
235000015320 potassium carbonate Nutrition 0.000 description 1
239000012286 potassium permanganate Substances 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
230000001737 promoting effect Effects 0.000 description 1
125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
108090000623 proteins and genes Proteins 0.000 description 1
239000002994 raw material Substances 0.000 description 1
238000001953 recrystallisation Methods 0.000 description 1
238000010992 reflux Methods 0.000 description 1
229910052895 riebeckite Inorganic materials 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000000741 silica gel Substances 0.000 description 1
229910002027 silica gel Inorganic materials 0.000 description 1
239000011734 sodium Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
159000000000 sodium salts Chemical class 0.000 description 1
229940056729 sodium sulfate anhydrous Drugs 0.000 description 1
235000010339 sodium tetraborate Nutrition 0.000 description 1
238000000638 solvent extraction Methods 0.000 description 1
238000001179 sorption measurement Methods 0.000 description 1
239000007858 starting material Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
238000006467 substitution reaction Methods 0.000 description 1
BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
238000001665 trituration Methods 0.000 description 1
235000012141 vanillin Nutrition 0.000 description 1
ZENOXNGFMSCLLL-UHFFFAOYSA-N vanillyl alcohol Chemical compound COC1=CC(CO)=CC=C1O ZENOXNGFMSCLLL-UHFFFAOYSA-N 0.000 description 1
239000008096 xylene Substances 0.000 description 1
239000004246 zinc acetate Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/52—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings
- C07C47/56—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings containing hydroxy groups

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

CH541863A 1962-05-02 1963-04-30 Procédé de préparation d'hydroxybenzaldéhydes CH402835A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR896174A FR1337243A (fr)	1962-05-02	1962-05-02	Procédé de préparation d'hydroxybenzaldéhydes

Publications (1)

Publication Number	Publication Date
CH402835A true CH402835A (fr)	1965-11-30

Family

ID=8778020

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH541863A CH402835A (fr)	1962-05-02	1963-04-30	Procédé de préparation d'hydroxybenzaldéhydes

Country Status (4)

Country	Link
CH (1)	CH402835A (da)
DK (1)	DK109924C (da)
FR (1)	FR1337243A (da)
GB (1)	GB987947A (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2305420A1 (fr) *	1975-03-28	1976-10-22	Rhone Poulenc Ind	Procede de preparation d'hydroxybenzaldehydes
US3975309A (en) *	1975-06-26	1976-08-17	Fritzsche Dodge & Olcott Inc.	2,4-Dihydroxy-3-methyl-benzaldehyde perfume compositions
US4351962A (en) *	1980-07-11	1982-09-28	Rhone Poulenc Inc.	Process for the preparation of hydroxy benzene carboxaldehydes

1962
- 1962-05-02 FR FR896174A patent/FR1337243A/fr not_active Expired
1963
- 1963-04-26 GB GB1657663A patent/GB987947A/en not_active Expired
- 1963-04-30 CH CH541863A patent/CH402835A/fr unknown
- 1963-05-02 DK DK206563A patent/DK109924C/da active

Also Published As

Publication number	Publication date
DK109924C (da)	1968-08-05
GB987947A (en)	1965-03-31
FR1337243A (fr)	1963-09-13

Publication	Publication Date	Title
EP0044260B1 (fr)	1984-04-11	Procédé de préparation de polyphénols comportant éventuellement un groupement aldéhyde
Kadaba et al.	1960	Hexachloroacetone as a Novel Source of Dichlorocarbene
US3321526A (en)	1967-05-23	Production of hydroxy benzaldehydes
EP0002151B1 (fr)	1983-05-25	Procédé de synthèse d'esters parachlorobenzoylphenoxy isobutyriques
EP0300861B1 (fr)	1992-01-15	Procédé de préparation d'aldéhydes aromatiques
EP0667331B1 (fr)	1999-12-08	Procédé de préparation d'hydroxybenzaldehydes
FR2493832A1 (fr)	1982-05-14	Procede de preparation, catalysee par un superacide, du resorcinol a partir du meta-isopropylphenol
EP0069016B1 (fr)	1985-09-18	Procédé de préparation d'alcools orthohydroxybenzyliques
EP0007285B1 (fr)	1982-02-03	Procédé de préparation des alcools orthohydroxybenzyliques
BE630052A (da)
EP0058100B1 (fr)	1984-12-27	Procédé de préparation d'hydroxybenzaldéhydes
EP0019531B1 (fr)	1982-04-07	Paraformylphénolate de sodium cristallisé, son procédé de préparation et son application
Williams et al.	1940	The reactions of ketene with salicylaldehyde and p-hydroxybenzaldehyde
FR2479189A1 (fr)	1981-10-02	Procede d'etherification de phenols
EP0047693B1 (fr)	1984-02-15	Procédé de fabrication d'acides hydroxyarylglyoxyliques et de leurs sels alcalins et son application à la fabrication du para-hydroxyphénylglyoxylate de sodium
FR2487338A1 (fr)	1982-01-29	Procede perfectionne de preparation du (methoxy-2 ethyl)-4 phenol
FR2529890A1 (fr)	1984-01-13	Nouveaux epoxydes perfluores, leurs procedes d'obtention
FR2584710A1 (fr)	1987-01-16	Procede de preparation d'aldehydes par formylation
BE877911A (fr)	1979-11-16	Procede pour la preparation d'hydroxy- et d'alcoxy-aldehydes aromatiques
FR2461693A1 (fr)	1981-02-06	Procede pour la preparation d'hydroxy- et d'alcoxy-aldehydes aromatiques
CH174871A (fr)	1935-01-31	Procédé de fabrication d'alcool éthylique.
CH326417A (fr)	1957-12-15	Procédé de préparation de la géranyl-acétone
FR2487336A1 (fr)	1982-01-29	Nouveau procede de preparation du (methoxy-2 ethyl)-4 phenol
BE473928A (da)	1947-07-31
FR2488883A1 (fr)	1982-02-26	Procede d'etherification de phenols