申请人:Bayer Aktiengesellschaft
公开号:US04143068A1
公开(公告)日:1979-03-06
Acyl cyanides of the formula ##STR1## wherein R is alkyl or substituted alkyl with 1 to 8 carbon atoms, or cyano-carbonyl substituted alkyl, i.e., containing another ##STR2## group, cycloalkyl or substituted cycloalkyl with 3 to 12 carbon atoms or aryl or substituted aryl or represents an optionally substituted 5-membered or 6-membered heterocyclic radical which can additionally also be fused with a benzene ring, Are made by reacting the corresponding acid halide with an alkali metal cyanide or anhydrous hydrocyanic acid in the presence of a heavy metal cyanide and optionally in the presence of a diluent, at a temperature of between 100.degree. C. and 300.degree. C.
式为##STR1##的酰基氰化物,其中R为具有1至8个碳原子的烷基或取代烷基,或者是含有另一个##STR2##基团的氰羰基取代烷基,环烷基或取代环烷基,其具有3至12个碳原子或芳基或取代芳基,或代表一种可选择取代的5-成员或6-成员杂环基团,该基团还可以与苯环融合,通过在重金属氰化物存在下,可选地在稀释剂存在下,将相应的酸卤与碱金属氰化物或无水氢氰酸反应,在100°C至300°C的温度下制备。