ES2056331T3 - Procedimiento para la racemizacion de esteres del acido 4-fenilbutanoico opticamente activos. - Google Patents

Procedimiento para la racemizacion de esteres del acido 4-fenilbutanoico opticamente activos.

Info

Publication number
ES2056331T3
ES2056331T3 ES90119178T ES90119178T ES2056331T3 ES 2056331 T3 ES2056331 T3 ES 2056331T3 ES 90119178 T ES90119178 T ES 90119178T ES 90119178 T ES90119178 T ES 90119178T ES 2056331 T3 ES2056331 T3 ES 2056331T3
Authority
ES
Spain
Prior art keywords
optically active
phenylbutanoic acid
racemization
group
esters
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.)
Expired - Lifetime
Application number
ES90119178T
Other languages
English (en)
Inventor
Hiroyuki Nohira
Takashi Onishi
Kazuo Yamamoto
Noriaki Kumagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
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.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Application granted granted Critical
Publication of ES2056331T3 publication Critical patent/ES2056331T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B55/00—Racemisation; Complete or partial inversion
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

SE PROVEE UN PROCESO PARA LA RACEMIZACION DE ESTERES DE ACIDO 4-FENILBUTANOICO OPTICAMENTE ACTIVO, EL CUAL COMPRENDE TRATAR ESTERES DE ACIDO 4-FENILBUTANOICO OPTICAMENTE ACTIVO DE LA FORMULA GENERAL (I) EN DONDE R1 REPRESENTA UN GRUPO HIDROXILO, UN GRUPO HIDROXILO PROTEGIDO POR UN ETER DE VINILO, O UN GRUPO ACILOXILO INFERIOR Y R2 REPRESENTA UN GRUPO ALQUILO INFERIOR CON UNA BASE SELECCIONADA DEL GRUPO COMPUESTO DE ALCOHOLATOS DE METAL ALCALINO, HIDRUROS DE METAL ALCALINO, Y AMIDAS DE METAL ALCALINO.
ES90119178T 1989-10-06 1990-10-05 Procedimiento para la racemizacion de esteres del acido 4-fenilbutanoico opticamente activos. Expired - Lifetime ES2056331T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26251689 1989-10-06

Publications (1)

Publication Number Publication Date
ES2056331T3 true ES2056331T3 (es) 1994-10-01

Family

ID=17376891

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90119178T Expired - Lifetime ES2056331T3 (es) 1989-10-06 1990-10-05 Procedimiento para la racemizacion de esteres del acido 4-fenilbutanoico opticamente activos.

Country Status (6)

Country Link
US (1) US5066826A (es)
EP (1) EP0421472B1 (es)
JP (1) JP2507163B2 (es)
AT (1) ATE105277T1 (es)
DE (1) DE69008653T2 (es)
ES (1) ES2056331T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202457A (en) * 1990-04-12 1993-04-13 Chisso Corporation Optically active alkyl 3-aryl-3-hydroxypropionates and a method for producing thereof
US5290955A (en) * 1991-12-29 1994-03-01 Kuraray Co., Ltd. Process for producing L-ambrox
JPH06116217A (ja) * 1992-10-02 1994-04-26 Kuraray Co Ltd （±）−シス−４−アミノシクロペント−２−エンカルボン酸誘導体の光学分割法
US6342636B1 (en) * 1997-11-06 2002-01-29 Yamakawa Chemical Industry Co., Ltd. Process for preparing optically active amines and optically active carboxylic acids, and intermediates for preparation
CN101412672B (zh) * 2008-11-18 2012-05-23 浙江大学 R-2-羟基-4-苯基丁酸乙酯的化学合成方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621835A1 (de) * 1986-06-28 1988-01-07 Hoechst Ag Verfahren zur racemisierung optisch aktiver (alpha)-phenoxypropionsaeure und deren derivate
US4837354A (en) * 1987-02-26 1989-06-06 Merrell Dow Pharmaceuticals Inc. Process for making and isolating (R)-2-hydroxy-4-phenylbutyric acid and esters
EP0325971A3 (de) * 1988-01-26 1990-07-25 F. Hoffmann-La Roche Ag Verfahren zur Herstellung optisch reiner Hydroxyarylalkansäuren und -ester
US4904822A (en) * 1988-02-19 1990-02-27 Kuraray Co., Ltd. Process for the optical resolution of (+)-2-hydroxy-4-phenylbutanoic acid
JPH0216954A (ja) * 1988-07-05 1990-01-19 Muronoki Shokuhin Kk 魚卵を主成分とするシート食品及びその製造方法
JPH0247100A (ja) * 1988-08-09 1990-02-16 Murata Kinpaku:Kk 転写箔を部分的に転写する方法
JP2817145B2 (ja) * 1988-09-17 1998-10-27 カシオ計算機株式会社 エンベロープ発生装置

Also Published As

Publication number Publication date
ATE105277T1 (de) 1994-05-15
DE69008653D1 (de) 1994-06-09
JP2507163B2 (ja) 1996-06-12
JPH03204838A (ja) 1991-09-06
EP0421472A1 (en) 1991-04-10
DE69008653T2 (de) 1994-12-01
US5066826A (en) 1991-11-19
EP0421472B1 (en) 1994-05-04

Similar Documents

Publication Publication Date Title
FR2528417B1 (fr) Procede de preparation de l'ethylene-glycol a partir d'une solution aqueuse d'oxyde d'ethylene, par extraction par du dioxyde de carbone et hydrolyse
IT8220662A0 (it) Procedimento per l'ottenimento di mucopolisaccaridi biologicamente attivi, aventi purezza elevata, mediante depolimerizzazione controllata della eparina.
ATE37887T1 (de) Verfahren zur rueckgewinnung von alkalimetall terminierten harzigen copolymerisaten.
IT7822831A0 (it) Metodo cinetico migliorato per la determinazione di concentrazioni di glucosio con glucosio deidrogenasi.
ES2058773T3 (es) Procedimiento para la preparacion de esteres de hidroxialquilo.
ES2056331T3 (es) Procedimiento para la racemizacion de esteres del acido 4-fenilbutanoico opticamente activos.
IT1255083B (it) Procedimento per la produzione di carbone attivo
ES2075614T3 (es) Sintesis de metil t-butil eter usando oxidos del grupo iv tratados con sulfatos o acido sulfurico.
UA8357A1 (uk) Спосіб оптичного поділу піранобензоксадіазольної сполуки
DE3781749D1 (de) Herstellungsverfahren von optisch aktiven alkoholen.
JPS5223020A (en) Process for preparation of fluorocompound containing oxygen
ES2046797T3 (es) Produccion de acido glioxilico mediante oxidacion enzimatica de acido glicolico.
ES2058372T3 (es) Procedimiento para la obtencion de esteres del acido 5-cloro-3-clorosulfonil-2-tiofenocarboxilico.
ES8707738A1 (es) Un procedimiento para la preparacion de 1-metil-4,5-dihidroorotil-histidil-prolinamida
JPS525738A (en) Process for racemization of optically active 2,2-dimethyl-3-(2,2-dichl orovinyl)-cyclopropanecarboxylic acid and its derivatives
ES2032285T3 (es) Procedimiento para la isomerizacion de esteres del acido 2-pentenico en esteres del acido 3-pentenico.
ES506694A0 (es) Procedimiento para tratar madera
IT8121442A0 (it) Procedimento per produrre l-amminoacido ossidasi.
JPS51148692A (en) Method for treating the active carbon without reducing the nitrogen di oxide
JPS5346916A (en) Preparation of hydroxyacetic acid
ES2007079A6 (es) Procedimiento y composicion para la lucha contra la hilandera de la vid
DE3781376D1 (de) Herstellungsverfahren von 2-vinylcyclopropan-1,1-dicarbonsaeure-dialkylestern.
ES476659A1 (es) Procedimiento de preparacion de amino-2-etil-2-tiofeno
JPS5231036A (en) Process for reduction of ferric-edta complex
JPS51138166A (en) Production method of semiconductor device

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 421472

Country of ref document: ES