发明名称 |
Preparation of alpha, beta-unsaturated carbonyl compounds |
摘要 |
Alpha, beta carbonyl compounds are prepared from an acid anhydride selected from the group consisting of glutaric anhydride and 3-alkyl glutaric anhydride, and a beta-hydroxy carbonyl compound having the following chemical formula: R2COH-CHR-CRO or R2COH-CHR-CN where each R is any substitutent group. The process comprises: (a) reacting the acid anhydride and the beta-hydroxy carbonyl compound in the presence of a catalytically effective amount of an acid catalyst to form an ester; (b) reacting the ester in the presence of a catalytically effective amount of a base catalyst to form a alpha, beta-unsaturated carbonyl compound and a carboxylic acid; and (c) separating the alpha, beta-unsaturated carbonyl compound and the carboxylic acid.
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申请公布号 |
US4617405(A) |
申请公布日期 |
1986.10.14 |
申请号 |
US19840654811 |
申请日期 |
1984.09.25 |
申请人 |
A. E. STALEY MANUFACTURING COMPANY |
发明人 |
KIELY, DONALD E.;SEIDMAN, MARTIN |
分类号 |
C07C45/66;C07C45/67;C07C51/09;C07C51/567;(IPC1-7):C07D307/60;C07C35/06 |
主分类号 |
C07C45/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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