HK112193A - Improved process for preparing 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid - Google Patents
Improved process for preparing 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acidInfo
- Publication number
- HK112193A HK112193A HK1121/93A HK112193A HK112193A HK 112193 A HK112193 A HK 112193A HK 1121/93 A HK1121/93 A HK 1121/93A HK 112193 A HK112193 A HK 112193A HK 112193 A HK112193 A HK 112193A
- Authority
- HK
- Hong Kong
- Prior art keywords
- dimethylphenoxy
- preparing
- dimethylpentanoic acid
- improved process
- alkali metal
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/367—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in singly bound form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Luminescent Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/806,312 US4665226A (en) | 1985-12-09 | 1985-12-09 | Process for preparing 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
HK112193A true HK112193A (en) | 1993-10-29 |
Family
ID=25193782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK1121/93A HK112193A (en) | 1985-12-09 | 1993-10-21 | Improved process for preparing 5-(2,5-dimethylphenoxy)-2,2-dimethylpentanoic acid |
Country Status (22)
Country | Link |
---|---|
US (1) | US4665226A (da) |
EP (1) | EP0226161B1 (da) |
JP (1) | JP2506094B2 (da) |
KR (2) | KR870005954A (da) |
CN (1) | CN1012896B (da) |
AT (1) | ATE47832T1 (da) |
AU (1) | AU590358B2 (da) |
CA (1) | CA1267155A (da) |
DE (1) | DE3666805D1 (da) |
DK (1) | DK174496B1 (da) |
ES (1) | ES2011245B3 (da) |
FI (1) | FI85974C (da) |
GR (1) | GR3000216T3 (da) |
HK (1) | HK112193A (da) |
HU (1) | HU195635B (da) |
IE (1) | IE59499B1 (da) |
IL (1) | IL80885A (da) |
IN (1) | IN166169B (da) |
NO (1) | NO164293C (da) |
PH (1) | PH24273A (da) |
PT (1) | PT83888B (da) |
ZA (1) | ZA868893B (da) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5235097A (en) * | 1990-05-11 | 1993-08-10 | Egis Gyogyszergyar | Process for the preparation of 2,2-dimethyl-5-(2,5-dimethyl-phenoxy)-pentanoic acid, intermediates for preparing this compound and process for preparing the intermediates |
HU210180B (en) * | 1990-05-11 | 1995-02-28 | Egyt Gyogyszervegyeszeti Gyar | Process for preparing halogeneted polybasic esters |
US5041640A (en) * | 1990-09-20 | 1991-08-20 | Warner-Lambert Company | Process for mono-, di-, trisubstituted acetic acids |
BE1007058A3 (fr) * | 1992-06-16 | 1995-03-07 | Omnichem Sa | Un procede nouveau pour la preparation de l'acide 5-(2,5-dimethylphenoxy)-2,2-dimethyl pentanoique. |
IT1265087B1 (it) * | 1993-05-20 | 1996-10-30 | Recordati Chem Pharm | Processo per la preparazione di gemfibrozil |
US5412112A (en) * | 1994-06-14 | 1995-05-02 | Industrial Technology Research Institute | Derivatives and preparation of 2,2-dimethyl-5-substituted phenoxy-pentanoic acids |
US5530145A (en) * | 1994-06-14 | 1996-06-25 | Syn-Tech Chem & Pharm Co., Ltd. | Anticholesteremic compounds |
EP1627069A4 (en) * | 2002-08-08 | 2010-06-02 | Glaxosmithkline Llc | PROCESS FOR THE ISOLATION AND PURIFICATION OF ANSAMITOCINES |
CN101440032B (zh) * | 2008-11-13 | 2012-05-23 | 浙江大学 | 一种吉非罗齐的多晶型及其制备方法 |
WO2020212955A1 (en) * | 2019-04-18 | 2020-10-22 | Hikal Limited | Process for the preparation of a key intermediate of gemfibrozil |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3674836A (en) * | 1968-05-21 | 1972-07-04 | Parke Davis & Co | 2,2-dimethyl-{11 -aryloxy-alkanoic acids and salts and esters thereof |
US3707566A (en) * | 1970-03-30 | 1972-12-26 | Parke Davis & Co | Aryloxypentane compounds |
US3759986A (en) * | 1970-03-30 | 1973-09-18 | Parke Davis & Co | Esters of 2,2-dimethyl-5-(aryloxy)-1-pentanols |
GB1422679A (en) * | 1972-11-16 | 1976-01-28 | Funai Pharmaceutical Ind Ltd | Substituted phenoxy-a-methylpropionic acid derivatives and a process for producing the same |
GB2024209B (en) * | 1978-05-31 | 1982-09-08 | Sori Soc Rech Ind | Phenoxalkylcarboxylic acids |
DK305884A (da) * | 1983-06-24 | 1984-12-25 | Yamanouchi Pharma Co Ltd | Phenoxyderivat, fremgangsmaade til fremstilling deraf og farmaceutisk praeparat indeholdende et saadant derivat |
-
1985
- 1985-12-09 US US06/806,312 patent/US4665226A/en not_active Expired - Lifetime
-
1986
- 1986-11-18 IN IN1005/DEL/86A patent/IN166169B/en unknown
- 1986-11-19 IE IE306086A patent/IE59499B1/en not_active IP Right Cessation
- 1986-11-24 ZA ZA868893A patent/ZA868893B/xx unknown
- 1986-11-24 AU AU65606/86A patent/AU590358B2/en not_active Ceased
- 1986-11-25 CA CA000523753A patent/CA1267155A/en not_active Expired - Fee Related
- 1986-12-01 FI FI864900A patent/FI85974C/fi not_active IP Right Cessation
- 1986-12-03 KR KR860010302A patent/KR870005954A/ko not_active IP Right Cessation
- 1986-12-05 PH PH34561A patent/PH24273A/en unknown
- 1986-12-05 IL IL80885A patent/IL80885A/xx unknown
- 1986-12-08 JP JP61290642A patent/JP2506094B2/ja not_active Expired - Fee Related
- 1986-12-08 NO NO864933A patent/NO164293C/no unknown
- 1986-12-08 HU HU865104A patent/HU195635B/hu not_active IP Right Cessation
- 1986-12-08 AT AT86117076T patent/ATE47832T1/de not_active IP Right Cessation
- 1986-12-08 DE DE8686117076T patent/DE3666805D1/de not_active Expired
- 1986-12-08 EP EP86117076A patent/EP0226161B1/en not_active Expired
- 1986-12-08 ES ES86117076T patent/ES2011245B3/es not_active Expired - Lifetime
- 1986-12-08 DK DK198605882A patent/DK174496B1/da not_active IP Right Cessation
- 1986-12-09 PT PT83888A patent/PT83888B/pt not_active IP Right Cessation
- 1986-12-09 CN CN86108472A patent/CN1012896B/zh not_active Expired
-
1987
- 1987-12-03 KR KR1019860010302Q patent/KR950003120B1/ko active
-
1989
- 1989-11-15 GR GR89400242T patent/GR3000216T3/el unknown
-
1993
- 1993-10-21 HK HK1121/93A patent/HK112193A/xx not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20031208 |
|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |