DE3867658D1 - Verfahren zur racemisierung von optisch aktiver chrysanthemumsaeure oder ihren estern. - Google Patents

Verfahren zur racemisierung von optisch aktiver chrysanthemumsaeure oder ihren estern.

Info

Publication number
DE3867658D1
DE3867658D1 DE8888301792T DE3867658T DE3867658D1 DE 3867658 D1 DE3867658 D1 DE 3867658D1 DE 8888301792 T DE8888301792 T DE 8888301792T DE 3867658 T DE3867658 T DE 3867658T DE 3867658 D1 DE3867658 D1 DE 3867658D1
Authority
DE
Germany
Prior art keywords
chrysanthemuic
esters
acid
optically active
racemizing optically
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 - Fee Related
Application number
DE8888301792T
Other languages
English (en)
Inventor
Gohfu Suzukamo
Yoji Sakito
Masami Fukao
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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
Priority claimed from JP62053519A external-priority patent/JPS63218641A/ja
Priority claimed from JP62073355A external-priority patent/JPS63238037A/ja
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Application granted granted Critical
Publication of DE3867658D1 publication Critical patent/DE3867658D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE8888301792T 1987-03-09 1988-03-01 Verfahren zur racemisierung von optisch aktiver chrysanthemumsaeure oder ihren estern. Expired - Fee Related DE3867658D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62053519A JPS63218641A (ja) 1987-03-09 1987-03-09 光学活性第一菊酸類のラセミ化方法
JP62073355A JPS63238037A (ja) 1987-03-26 1987-03-26 光学活性第一菊酸類のラセミ化方法
JP14546787 1987-06-10

Publications (1)

Publication Number Publication Date
DE3867658D1 true DE3867658D1 (de) 1992-02-27

Family

ID=27294973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888301792T Expired - Fee Related DE3867658D1 (de) 1987-03-09 1988-03-01 Verfahren zur racemisierung von optisch aktiver chrysanthemumsaeure oder ihren estern.

Country Status (4)

Country Link
US (1) US4820864A (de)
EP (1) EP0282221B1 (de)
DE (1) DE3867658D1 (de)
HU (1) HU203067B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343812B1 (de) * 1988-05-26 1993-01-07 Sumitomo Chemical Company, Limited Verfahren zur Herstellung von trans-2,2-Dimethyl-3-(2,2-dihalovinyl)-cyclopropancarbonsäureestern
CN1231451C (zh) 2001-07-18 2005-12-14 住友化学工业株式会社 使旋光的乙烯基取代的环丙烷羧酸化合物外消旋的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282984A (en) * 1962-12-25 1966-11-01 Sumitomo Chemical Co Racemization of optically active transchrysanthemic acid
SE366022B (de) * 1969-03-24 1974-04-08 Sumitomo Chemical Co
JPS5337858B2 (de) * 1973-11-12 1978-10-12
JPS52144651A (en) * 1976-05-24 1977-12-02 Sumitomo Chem Co Ltd Racemization of optical active 2,2-dimethyl-3-(1-alkenyl)-cyclopropane-1-carboxylic acid
US4473703A (en) * 1981-03-30 1984-09-25 Sumitomo Chemical Company, Limited Method of epimerization of alkyl chrysanthemate
JPS57163341A (en) * 1981-03-30 1982-10-07 Sumitomo Chem Co Ltd Preparation of racemized cyclopropanecarboxylic acid derivative
EP0155765B1 (de) * 1984-02-22 1988-10-05 Sumitomo Chemical Company, Limited Verfahren zur Racemisierung der Chrysanthemsäure oder ihrer Ester
HU200310B (en) * 1984-06-15 1990-05-28 Sumitomo Chemical Co Process for racemizing chrisanthemic acid and esters and for transforming raceme cys isomeres into raceme trans isomeres
JPS62198643A (ja) * 1986-02-27 1987-09-02 Sumitomo Chem Co Ltd ラセミ第一菊酸類の製造法

Also Published As

Publication number Publication date
HUT46879A (en) 1988-12-28
HU203067B (en) 1991-05-28
EP0282221A2 (de) 1988-09-14
EP0282221A3 (en) 1988-09-21
EP0282221B1 (de) 1992-01-15
US4820864A (en) 1989-04-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee