GB1115039A - Process for the preparation of cycloalkene-dicarboxylic acids - Google Patents

Process for the preparation of cycloalkene-dicarboxylic acids

Info

Publication number
GB1115039A
GB1115039A GB43294/65A GB4329465A GB1115039A GB 1115039 A GB1115039 A GB 1115039A GB 43294/65 A GB43294/65 A GB 43294/65A GB 4329465 A GB4329465 A GB 4329465A GB 1115039 A GB1115039 A GB 1115039A
Authority
GB
United Kingdom
Prior art keywords
ene
ethyl ester
dicarboxylic
ester
preparation
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
Application number
GB43294/65A
Inventor
Yannik Bonnet
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB1115039A publication Critical patent/GB1115039A/en
Expired 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
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C62/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C62/30—Unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/18—Systems containing only non-condensed rings with a ring being at least seven-membered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Dicarboxylic acids of the formula <FORM:1115039/C2/1> in which A is a polymethylene radical containing at least 3 carbon atoms, or the anhydrides or diesters thereof are prepared by (a) reacting at room temperature two molecular proportions of halogen with one molecular proportion of a b -keto-ester of formula <FORM:1115039/C2/2> in which R is C1-C4 alkyl; (b) reacting the di-halo compound obtained with an alkali metal carbonate or bicarbonate in a C1-C4 alkanol, and, if desired, (c) converting the dicarboxylic ester obtained into the corresponding acid or anhydride. Examples are given of the preparation of (a) cycloundec-1-ene-1,2-dicarboxylic acid (which is claimed per se) its anhydride and its mixed methyl ethyl ester; (b) cyclohept-1-ene-1,2-dicarboxylic acid and its ethyl ester; and (c) cyclopent-1-ene-1,2-dicarboxylic acid and its ethyl ester.
GB43294/65A 1964-10-20 1965-10-12 Process for the preparation of cycloalkene-dicarboxylic acids Expired GB1115039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR992023A FR1436570A (en) 1964-10-20 1964-10-20 Process for the preparation of cycloalkene dicarboxylic acids

Publications (1)

Publication Number Publication Date
GB1115039A true GB1115039A (en) 1968-05-22

Family

ID=8840688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43294/65A Expired GB1115039A (en) 1964-10-20 1965-10-12 Process for the preparation of cycloalkene-dicarboxylic acids

Country Status (6)

Country Link
BE (1) BE671109A (en)
CH (1) CH434239A (en)
DE (1) DE1468938A1 (en)
FR (1) FR1436570A (en)
GB (1) GB1115039A (en)
NL (1) NL6513262A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009123A (en) * 1988-05-23 1991-04-23 Nippon Piston Ring Co. Ltd. Camshaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009123A (en) * 1988-05-23 1991-04-23 Nippon Piston Ring Co. Ltd. Camshaft

Also Published As

Publication number Publication date
CH434239A (en) 1967-04-30
FR1436570A (en) 1966-04-29
BE671109A (en)
NL6513262A (en) 1966-04-21
DE1468938A1 (en) 1969-05-29

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