发明名称 |
WERKWIJZE VOOR DE BEREIDING VAN ACYLCYANIDEN. |
摘要 |
Acyl cyanides of the formula <IMAGE> (I) in which R represents alkyl or substituted alkyl of from 1 to 8 carbon atoms, cycloalkyl or substituted cycloalkyl of from 3 to 12 carbon atoms, aryl or substituted aryl; or an optionally substituted 5-membered or 6-membered heterocyclic radical which can also be fused with a benzene ring are prepared by reacting the corresponding carboxylic acid anhydride in the presence of a carboxylic acid halide with an alkali metal cyanide or anhydrous acid, at a temperature of between 50 DEG and 300 DEG C. |
申请公布号 |
NL189088(C) |
申请公布日期 |
1993.01.04 |
申请号 |
NL19770003598 |
申请日期 |
1977.04.01 |
申请人 |
BAYER AKTIENGESELLSCHAFT TE LEVERKUSEN-BAYERWERK, BONDSREPUBLIEK DUITSLAND. |
发明人 |
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分类号 |
C07D249/02;C07C;C07C51/54;C07C63/04;C07C67/00;C07C253/00;C07C253/04;C07C255/17;C07C255/31;C07C255/40;C07C255/45;C07C255/56;C07D235/04;C07D247/00;C07D253/06;C07D261/08;C07D263/32;C07D269/00;C07D285/08;C07D295/18;C07D307/46;C07D307/54;C07D521/00;(IPC1-7):C07C253/04 |
主分类号 |
C07D249/02 |
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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