GB567803A - Process for the manufacture of cyclohexanone glyoxalic esters - Google Patents

Process for the manufacture of cyclohexanone glyoxalic esters

Info

Publication number
GB567803A
GB567803A GB923943A GB923943A GB567803A GB 567803 A GB567803 A GB 567803A GB 923943 A GB923943 A GB 923943A GB 923943 A GB923943 A GB 923943A GB 567803 A GB567803 A GB 567803A
Authority
GB
United Kingdom
Prior art keywords
cyclohexanone
hrs
manufacture
anhydrous sodium
sodium methoxide
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
GB923943A
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.)
CLAUS WOLFGANG PICARD
Smith and Nephew Nominee Services Ltd
Original Assignee
CLAUS WOLFGANG PICARD
Herts Pharmaceuticals 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 CLAUS WOLFGANG PICARD, Herts Pharmaceuticals Ltd filed Critical CLAUS WOLFGANG PICARD
Priority to GB923943A priority Critical patent/GB567803A/en
Publication of GB567803A publication Critical patent/GB567803A/en
Expired legal-status Critical Current

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
    • C07C69/66—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
    • C07C69/67—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 saturated acids

Landscapes

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

Abstract

Cyclohexanone glyoxalic esters are prepared by contacting cyclohexanone or an alkyl cyclohexanone with a diester, especially a dialkyl ester, of oxalic acid at a low temperature, generally about 0 DEG C., in the presence of anhydrous sodium methoxide. In an example, a mixture of cyclohexanone and diethyl oxalate is cooled to about 0 DEG C., anhydrous sodium methoxide added over 2-3 hrs. so that the temperature does not rise above 5 DEG C., and the mixture left for 12 hrs. at about 0 DEG C. followed by 24 hrs. at room temperature. Ice water followed by ice-cold hydrochloric acid is added to yield ethyl cyclohexanone glyoxalate.
GB923943A 1943-06-09 1943-06-09 Process for the manufacture of cyclohexanone glyoxalic esters Expired GB567803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB923943A GB567803A (en) 1943-06-09 1943-06-09 Process for the manufacture of cyclohexanone glyoxalic esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB923943A GB567803A (en) 1943-06-09 1943-06-09 Process for the manufacture of cyclohexanone glyoxalic esters

Publications (1)

Publication Number Publication Date
GB567803A true GB567803A (en) 1945-03-05

Family

ID=9868086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB923943A Expired GB567803A (en) 1943-06-09 1943-06-09 Process for the manufacture of cyclohexanone glyoxalic esters

Country Status (1)

Country Link
GB (1) GB567803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028445A2 (en) * 1979-08-29 1981-05-13 Ciba-Geigy Ag Acridinones, their preparation and use; intermediates and their preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028445A2 (en) * 1979-08-29 1981-05-13 Ciba-Geigy Ag Acridinones, their preparation and use; intermediates and their preparation
EP0028445A3 (en) * 1979-08-29 1982-08-11 E.I. Du Pont De Nemours And Company Acridinones, their preparation and use; intermediates and their preparation

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