GB1213255A - Process for the acetylation of activated ch groups - Google Patents

Process for the acetylation of activated ch groups

Info

Publication number
GB1213255A
GB1213255A GB32923/69A GB3292369A GB1213255A GB 1213255 A GB1213255 A GB 1213255A GB 32923/69 A GB32923/69 A GB 32923/69A GB 3292369 A GB3292369 A GB 3292369A GB 1213255 A GB1213255 A GB 1213255A
Authority
GB
United Kingdom
Prior art keywords
acid
ethyl ester
acetoxy
june
acid ethyl
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
GB32923/69A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB1213255A publication Critical patent/GB1213255A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/46—Preparation of carboxylic acid esters from ketenes or polyketenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/76—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton with the aid of ketenes

Landscapes

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

Abstract

1,213,255. Acetylation. WACKER-CHEMIE G.m.b.H. 30 June, 1969 [28 June, 1968], No. 32923/69. Heading C2C. Compounds HCX 3 where X represents -CO-Y, -CN or one X is a hydrogen atom, and Y is OR, -N(R) 2 or R, and R is a branched or unbranched, saturated or unsaturated optionally substituted mono- or bivalent aliphatic or araliphatic radical (1-8C) or is anunsubstituted or substituted aryl radical are acetylated by reacting with ketene in the presence of an alkali metal salt of a carboxylic acid and/or a sulphonic acid at between -10‹ C. and 200‹ C. The preparation of triacetyl methane from acetylacetone, 3-acetoxy-crotonic acid ethyl ester and diacetyl acetic acid ethyl ester from acetoacetic acid ethyl ester, α- cyano-#-acetoxy-2-butenone acid methyl ester from cyanoacetic acid methyl ester, diacetylacetic acid allyl 2 - ethyl - hexyl and benzyl esters from the corresponding acetoacetic acid esters is described. The catalysts may be the salts of formic, acetic, chloracetic, propionic, butyric, isobutyric caprylic, capric, lauric, isotridecane and stearic acids or sulphoacetic, chlorosulphoacetic and sulphobenzoic acids and the process may be continuous or discontinuous in an inert solvent.
GB32923/69A 1968-06-28 1969-06-30 Process for the acetylation of activated ch groups Expired GB1213255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681768773 DE1768773A1 (en) 1968-06-28 1968-06-28 Process for the acetylation of activated CH groups

Publications (1)

Publication Number Publication Date
GB1213255A true GB1213255A (en) 1970-11-25

Family

ID=5699856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32923/69A Expired GB1213255A (en) 1968-06-28 1969-06-30 Process for the acetylation of activated ch groups

Country Status (6)

Country Link
BE (1) BE735149A (en)
CH (1) CH514540A (en)
DE (1) DE1768773A1 (en)
FR (1) FR2019289A1 (en)
GB (1) GB1213255A (en)
NL (1) NL6909491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365040A (en) * 1979-11-27 1982-12-21 Wacker-Chemie Gmbh Aqueous plastic dispersions of unsaturated diacetylacetic ester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365040A (en) * 1979-11-27 1982-12-21 Wacker-Chemie Gmbh Aqueous plastic dispersions of unsaturated diacetylacetic ester

Also Published As

Publication number Publication date
NL6909491A (en) 1969-12-30
FR2019289A1 (en) 1970-07-03
BE735149A (en) 1969-12-29
DE1768773A1 (en) 1972-04-27
CH514540A (en) 1971-10-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee