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GB817000A - Improvements in the production of esters of beta-substituted glycidic acid - Google Patents

Improvements in the production of esters of beta-substituted glycidic acid

Info

Publication number
GB817000A
GB817000A GB7548/58A GB754858A GB817000A GB 817000 A GB817000 A GB 817000A GB 7548/58 A GB7548/58 A GB 7548/58A GB 754858 A GB754858 A GB 754858A GB 817000 A GB817000 A GB 817000A
Authority
GB
United Kingdom
Prior art keywords
beta
acid
ester
alpha
sodium
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
GB7548/58A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB817000A publication Critical patent/GB817000A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D303/00Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02Compounds containing oxirane rings
    • C07D303/48Compounds containing oxirane rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals

Landscapes

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

Abstract

Esters of beta-substituted glycidic acid are produced by condensing an alpha-halogencarboxylic acid ester with a carbonyl compound in the pressure of a condensing agent comprising a sodium or potassium alcoholate of a primary or secondary alcohol having at least 5 carbon atoms in the molecule and which is difficulty soluble or practically insoluble in water. Suitable alcoholates are those of pentanols, hexanols, cyclohexanols, heptanols, octanols and nonanols, which may be branched with aliphatic or araliphatic side chains and which preferably have the hydroxy group in the alpha or beta position. The said alcoholates are preferably used in 20 to 50 per cent solution in the alcohol corresponding to the alcoholate. Suitable alpha-halogencarboxylic acid esters are the esters of monochloracetic acid, alpha-halogenpropionic acid, alpha-halogen-butyric acids or alpha-halogen-substituted araliphatic carboxylic acids, e.g. alpha-halogenphenylacetic acid. In general the alcohol moiety of the ester corresponds to the alcoholate used, but in the case where esters of other alcohols are used, ester interchange may take place during the process to give the glycidic ester of the alcohol corresponding to the alcoholate. Suitable carbonyl components are acetone, ethyl methyl ketone, cyclohexanone, benzophenone, acetophenone, butyraldehyde, benzaldehyde, furfural, 2-ethylhexanal and 2-ethylhexenal. The reaction may be effected by allowing the alpha-halogen carboxylic acid ester and the carbonyl compound to flow into a solution of the condensing agent at a temperature between - 10 DEG and +20 DEG C., preferably at 0 DEG to 8 DEG C. A diluent such as benzene, toluene, or cyclohexane may be present. In examples: (1) beta, beta-dimethylglycidic acid 2 - ethylhexyl ester is obtained by reacting monochloracetic acid 2-ethylhexyl ester with acetone at 5 DEG C. in a solution of sodium 2-ethylhexylate in 2-ethylhexanol; (2) beta, beta-cyclohexylideneglycidic acid 2-ethylhexyl ester is obtained by reacting monochloracetic acid 2-ethylhexyl ester with cyclohexanone at 5 DEG C. in a solution of sodium 2-ethylhexylate in 2-ethylhexanol; the following esters are prepared in a similar manner using the alcoholate corresponding to the alcohol radical of the ester: alpha-methyl-beta, beta - cyclohexylideneglycidic acid 2 - ethylhexyl ester; beta - phenylglycidic acid 2 - ethylhexyl ester; beta - (n - heptene - D - 3,4-yl-3) glycidic acid 2-ethylhexyl ester; beta-(n-heptyl - 3) - glycidic acid and 2 - ethylhexyl ester, beta, beta - cyclohexylideneglycidic acid n - hexyl ester; beta, beta-cyclohexylidene 2-ethylbutyl ester; beta, beta-cyclohexylidene-3-methylhexyl ester; beta, beta-cyclohexylideneglycidic acid n-octyl ester; (3) beta, betacyclohexylideneglycidic acid cyclohexyl ester is obtained from cyclohexanone and cyclohexyl monochloracetate with sodium cyclohexylate in cyclohexanol; (4) beta, beta-cyclohexylidene glycidic acid 2-ethylhexyl ester is obtained from cyclohexanone and ethyl monochloracetate with sodium 2-ethylhexylate in 2-ethylhexanol with interchange of ester radicals; (5) beta, beta-dimethylglycidic acid 2-ethylhexyl ester is obtained from acetone and ethyl monochloracetate with sodium 2-ethylhexylate in 2-ethylhexanol; (6) beta, beta-cyclohexylideneglycidic acid nonyl ester is obtained from cyclohexanone and nonyl monochloracetate (obtained by esterification of monochloracetic acid with a mixture of isomeric nonanols obtained by the oxoprocess from octenes) with a mixture of the corresponding sodium nonylates in the nonanols.
GB7548/58A 1957-11-07 1958-03-10 Improvements in the production of esters of beta-substituted glycidic acid Expired GB817000A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE817000X 1957-11-07

Publications (1)

Publication Number Publication Date
GB817000A true GB817000A (en) 1959-07-22

Family

ID=6735131

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7548/58A Expired GB817000A (en) 1957-11-07 1958-03-10 Improvements in the production of esters of beta-substituted glycidic acid

Country Status (1)

Country Link
GB (1) GB817000A (en)

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