DE3382642D1 - METHOD OF PRODUCING DERIVATIVES OF 3,5-DIOXOCYCLOHEXANCARBONIC ACID. - Google Patents

METHOD OF PRODUCING DERIVATIVES OF 3,5-DIOXOCYCLOHEXANCARBONIC ACID.

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Publication number
DE3382642D1
DE3382642D1 DE8888114855T DE3382642T DE3382642D1 DE 3382642 D1 DE3382642 D1 DE 3382642D1 DE 8888114855 T DE8888114855 T DE 8888114855T DE 3382642 T DE3382642 T DE 3382642T DE 3382642 D1 DE3382642 D1 DE 3382642D1
Authority
DE
Germany
Prior art keywords
acid
opt
iii
give
dioxocyclohexancarbonic
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
DE8888114855T
Other languages
German (de)
Other versions
DE3382642T2 (en
Inventor
Kenji Motojima
Takeshige Miyazawa
Yasufumi Toyokawa
Masafumi Matsuzawa
Hiroshi Hokari
Shoji Kusano
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.)
Ihara Chemical Industry Co Ltd
Kumiai Chemical Industry Co Ltd
Original Assignee
Ihara Chemical Industry Co Ltd
Kumiai Chemical Industry 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 Ihara Chemical Industry Co Ltd, Kumiai Chemical Industry Co Ltd filed Critical Ihara Chemical Industry Co Ltd
Priority claimed from EP88114855A external-priority patent/EP0306996B1/en
Application granted granted Critical
Publication of DE3382642D1 publication Critical patent/DE3382642D1/en
Publication of DE3382642T2 publication Critical patent/DE3382642T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Prepn. of 3,5-dioxocyclohexanecarboxylic acid derivs. of formula (I) or salt, where R = H, alkyl, alkylthioalkyl or opt. substd. phenyl; and R' = alkyl, opt. substd. benzyl, phenethyl, phenoxy-, 2-thienyl-, alkoxy- or alkylthiomethyl; comprises: (i) cyclising a cpd. of formula (II) in presence of base to give (III), where M' = alkali metal; (ii) opt. treating (III) with acid to give (IV); (iii) reacting (III) or (IV) with R'-CO-Cl (V) to give (VI); and (v) rearranging (VI) in presence of a catalyst to give (I) and opt. converting to a salt by reacting with inorganic or organic cation.
DE8888114855T 1983-09-23 1983-09-23 METHOD OF PRODUCING DERIVATIVES OF 3,5-DIOXOCYCLOHEXANCARBONIC ACID. Expired - Lifetime DE3382642T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114855A EP0306996B1 (en) 1983-04-22 1983-09-23 Process for the preparation of 3,5-dioxo cyclohexane carboxylic acid derivatives

Publications (2)

Publication Number Publication Date
DE3382642D1 true DE3382642D1 (en) 1992-12-17
DE3382642T2 DE3382642T2 (en) 1993-04-29

Family

ID=8199296

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888114855T Expired - Lifetime DE3382642T2 (en) 1983-09-23 1983-09-23 METHOD OF PRODUCING DERIVATIVES OF 3,5-DIOXOCYCLOHEXANCARBONIC ACID.

Country Status (1)

Country Link
DE (1) DE3382642T2 (en)

Also Published As

Publication number Publication date
DE3382642T2 (en) 1993-04-29

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