JPH05502232A - スクラレオリドの製造方法 - Google Patents
スクラレオリドの製造方法Info
- Publication number
- JPH05502232A JPH05502232A JP91501820A JP50182091A JPH05502232A JP H05502232 A JPH05502232 A JP H05502232A JP 91501820 A JP91501820 A JP 91501820A JP 50182091 A JP50182091 A JP 50182091A JP H05502232 A JPH05502232 A JP H05502232A
- Authority
- JP
- Japan
- Prior art keywords
- mol
- sclareol
- acid
- sclareolide
- peracid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- IMKJGXCIJJXALX-SHUKQUCYSA-N Norambreinolide Chemical compound CC([C@@H]1CC2)(C)CCC[C@]1(C)[C@@H]1[C@]2(C)OC(=O)C1 IMKJGXCIJJXALX-SHUKQUCYSA-N 0.000 title claims description 18
- IMKJGXCIJJXALX-UHFFFAOYSA-N ent-Norambreinolide Natural products C1CC2C(C)(C)CCCC2(C)C2C1(C)OC(=O)C2 IMKJGXCIJJXALX-UHFFFAOYSA-N 0.000 title claims description 18
- 229940096995 sclareolide Drugs 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title description 5
- XVULBTBTFGYVRC-HHUCQEJWSA-N sclareol Chemical compound CC1(C)CCC[C@]2(C)[C@@H](CC[C@](O)(C)C=C)[C@](C)(O)CC[C@H]21 XVULBTBTFGYVRC-HHUCQEJWSA-N 0.000 claims description 53
- XVULBTBTFGYVRC-UHFFFAOYSA-N Episclareol Natural products CC1(C)CCCC2(C)C(CCC(O)(C)C=C)C(C)(O)CCC21 XVULBTBTFGYVRC-UHFFFAOYSA-N 0.000 claims description 26
- LAEIZWJAQRGPDA-UHFFFAOYSA-N Manoyloxid Natural products CC1(C)CCCC2(C)C3CC=C(C)OC3(C)CCC21 LAEIZWJAQRGPDA-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 23
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 150000002084 enol ethers Chemical class 0.000 claims description 11
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 9
- 150000004965 peroxy acids Chemical class 0.000 claims description 8
- 239000012286 potassium permanganate Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
- -1 alkaline earth metal salts Chemical class 0.000 claims description 3
- 239000003444 phase transfer catalyst Substances 0.000 claims description 3
- 150000003304 ruthenium compounds Chemical class 0.000 claims description 3
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 claims description 2
- NHQDETIJWKXCTC-UHFFFAOYSA-N 3-chloroperbenzoic acid Chemical compound OOC(=O)C1=CC=CC(Cl)=C1 NHQDETIJWKXCTC-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 2
- 150000003303 ruthenium Chemical class 0.000 claims description 2
- GLVYLTSKTCWWJR-UHFFFAOYSA-N 2-carbonoperoxoylbenzoic acid Chemical compound OOC(=O)C1=CC=CC=C1C(O)=O GLVYLTSKTCWWJR-UHFFFAOYSA-N 0.000 claims 1
- USSBDBZGEDUBHE-UHFFFAOYSA-L magnesium;2-oxidooxycarbonylbenzoate Chemical compound [Mg+2].[O-]OC(=O)C1=CC=CC=C1C([O-])=O USSBDBZGEDUBHE-UHFFFAOYSA-L 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 235000019253 formic acid Nutrition 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 3
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical compound CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 235000015278 beef Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000001147 (3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyl-2,4,5,5a,7,8,9,9b-octahydro-1H-benzo[e][1]benzofuran Substances 0.000 description 1
- 241000283153 Cetacea Species 0.000 description 1
- 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 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229940024548 aluminum oxide Drugs 0.000 description 1
- YPZUZOLGGMJZJO-LQKXBSAESA-N ambroxan Chemical compound CC([C@@H]1CC2)(C)CCC[C@]1(C)[C@@H]1[C@]2(C)OCC1 YPZUZOLGGMJZJO-LQKXBSAESA-N 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 229940028925 hexasol Drugs 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C07D307/92—Naphthofurans; Hydrogenated naphthofurans
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
Description
Claims (5)
- 1.第一段階において、スクラレオールをルテニウム化合物の存在下の次亜塩素 酸塩によって、あるいは過マンガン酸カリウムによる既知の方法のどちらかによ って酸化し、ヒドロキシケトン2および/またはエノールエーテル3を形成させ 、第二段階において、ヒドロキシケトン2および/またはエノールエーテル3を 、過酸および/またはその塩によってさらに酸化しスクラレオリドを形成させる ことを特徴とする、スクラレオールからスクラレオリドを製造する為の、二段階 から成る方法。
- 2.第一段階において、スクラレオールを、好ましくは0.1〜10モル%の、 より好ましくは0.5〜3モル%のルテニウム塩の存在下で、好ましくは400 〜1000モル%、より好ましくは600〜800モル%の次亜塩素酸のアルカ リ金属および/またはアルカリ土類金属塩によって、あるいは300〜600モ ル%の、好ましくは350〜550モル%の過マンガン酸カリウム(全てスクラ レオールに対するモル%)によって酸化することを特徴とする請求項1に記載の 方法。
- 3.スクラレオールの第一段階での酸化を、0〜20モル%の、好ましくは0〜 10モル%の相間移動触媒(全てスクラレオールに対するモル%)の存在下にお いて、次亜塩素酸塩によって行うことを特徴とする請求項1または2に記載の方 法。
- 4.100〜500モル%の、好ましくは100〜300モル%の過酸および/ または過酸塩(全てヒドロキシケトンおよび/またはエノールエーテルに対する モル%)を、第二段階において使用することを特徴とする請求項1〜3のいずれ かに記載の方法。
- 5.過ギ酸、過酢酸、モノペルオキシフタル酸、m−クロロ過安息香酸および/ またはモノペルオキシフタル酸マグネシウムを過酸および/または過酸塩として 使用することを特徴とする請求項1〜4のいずれかに記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3942358.1 | 1989-12-21 | ||
| DE3942358A DE3942358A1 (de) | 1989-12-21 | 1989-12-21 | Verfahren zur herstellung von sclareolid |
| PCT/EP1990/002166 WO1991009852A1 (de) | 1989-12-21 | 1990-12-13 | Verfahren zur herstellung von sclareolid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05502232A true JPH05502232A (ja) | 1993-04-22 |
| JP3020272B2 JP3020272B2 (ja) | 2000-03-15 |
Family
ID=6396069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03501820A Expired - Fee Related JP3020272B2 (ja) | 1989-12-21 | 1990-12-13 | スクラレオリドの製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5247100A (ja) |
| EP (1) | EP0506776B1 (ja) |
| JP (1) | JP3020272B2 (ja) |
| DE (2) | DE3942358A1 (ja) |
| ES (1) | ES2060354T3 (ja) |
| WO (1) | WO1991009852A1 (ja) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4124726A1 (de) * | 1991-07-25 | 1993-01-28 | Henkel Kgaa | Isomere labdan-derivate, verfahren zu deren herstellung und deren verwendung |
| EP0550889B1 (en) * | 1991-12-29 | 1996-09-18 | Kuraray Co., Ltd. | Process for producing L-Ambrox |
| WO1993021174A1 (de) * | 1992-04-16 | 1993-10-28 | Henkel Kommanditgesellschaft Auf Aktien | Verfahren zur herstellung von sclareolid |
| DE69706786T2 (de) * | 1996-08-02 | 2002-05-23 | Quest International B.V., Naarden | Herstellung von Norlabdan-Oxid-Zwischenprodukten |
| EP0822191B1 (en) * | 1996-08-02 | 2001-09-19 | Quest International B.V. | Preparation of intermediates for norlabdane oxide |
| US5945546A (en) * | 1997-03-25 | 1999-08-31 | Subbiah; Ven | Purification of sclareolide |
| US6150381A (en) | 1998-06-09 | 2000-11-21 | R.J. Reynolds Tobacco Company | Methods of treating microbial infection and therapeutic formulations therefor |
| DE60303146T2 (de) * | 2002-07-31 | 2006-08-31 | Firmenich S.A. | Verfahren zur racematspaltung einer sclareolid-vorstufe |
| ES2238003B2 (es) * | 2004-01-22 | 2006-04-01 | Universidad De Jaen | Procedimientos de obtencion de norambreinolida enantiomericamente pura y racemica. |
| GB0417063D0 (en) | 2004-07-30 | 2004-09-01 | Givaudan Sa | Process for the preparation of optically-active compounds |
| DE102005015590A1 (de) | 2005-04-05 | 2006-10-12 | Symrise Gmbh & Co. Kg | Verfahren zur Darstellung von Ketonen durch Ozonolyse |
| DE102005046535A1 (de) | 2005-09-28 | 2007-03-29 | Symrise Gmbh & Co. Kg | Darstellung von Aldehyden durch Ozonolyse sekundärer Allylalkohole |
| CN102766123A (zh) * | 2011-05-04 | 2012-11-07 | 焦作市馨之源科技有限公司 | 一种由香紫苏醇合成香紫苏内酯的生产工艺 |
| MD4209C1 (ro) * | 2012-03-30 | 2013-10-31 | Институт Химии Академии Наук Молдовы | Procedeu de obţinere a sclareoloxidului |
| CN105296157B (zh) * | 2015-12-03 | 2019-02-26 | 北京工商大学 | 一种降龙涎紫苏酯香料 |
| CN112973725B (zh) * | 2021-03-08 | 2022-12-13 | 重庆化工职业学院 | 用于香紫苏醇氧化合成香紫苏内酯的催化剂 |
| US20250387311A1 (en) | 2022-03-01 | 2025-12-25 | Isp Investments Llc | Sclareol or sclareolide for improving scalp conditions and hair growth |
| CN117263896A (zh) * | 2023-09-19 | 2023-12-22 | 焦作市馨之源科技有限公司 | 一种从微生物发酵液中提取香紫苏内酯的方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3050532A (en) * | 1959-06-19 | 1962-08-21 | Reynolds Tobacco Co R | Two stage oxidation of sclareol |
| US3096346A (en) * | 1961-09-11 | 1963-07-02 | Reynolds Tobacco Co R | Oxidation of manoyl oxide |
-
1989
- 1989-12-21 DE DE3942358A patent/DE3942358A1/de not_active Withdrawn
-
1990
- 1990-12-13 ES ES91901525T patent/ES2060354T3/es not_active Expired - Lifetime
- 1990-12-13 EP EP91901525A patent/EP0506776B1/de not_active Expired - Lifetime
- 1990-12-13 JP JP03501820A patent/JP3020272B2/ja not_active Expired - Fee Related
- 1990-12-13 DE DE59007171T patent/DE59007171D1/de not_active Expired - Fee Related
- 1990-12-13 WO PCT/EP1990/002166 patent/WO1991009852A1/de not_active Ceased
- 1990-12-13 US US07/862,560 patent/US5247100A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3020272B2 (ja) | 2000-03-15 |
| EP0506776A1 (de) | 1992-10-07 |
| WO1991009852A1 (de) | 1991-07-11 |
| DE3942358A1 (de) | 1991-06-27 |
| DE59007171D1 (de) | 1994-10-20 |
| US5247100A (en) | 1993-09-21 |
| EP0506776B1 (de) | 1994-09-14 |
| ES2060354T3 (es) | 1994-11-16 |
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