申请人:Ethyl Corporation
公开号:US05166434A1
公开(公告)日:1992-11-24
A process is disclosed for preparing aromatic-substituted unsaturated amides. The process comprises treating a compound of the formula ##STR1## where Ar is C.sub.6 to C.sub.10 aryl unsubstituted or substituted with at least one halo, amino, nitro, hydroxy, C.sub.1 to C.sub.12 linear or branched alkyl, C.sub.1 to C.sub.12 linear or branched alkoxy or haloalkyl, the alkyl moiety being C.sub.1 to C.sub.6 linear or branched or the group ##STR2## where Ar' is C.sub.6 to C.sub.10 aryl unsubstituted or substituted with at least one halo, amino, nitro, hydroxy, C.sub.1 to C.sub.12 linear or branched alkyl, C.sub.1 to C.sub.12 alkoxy or haloalkyl, the alkyl moiety being C.sub.1 to C.sub.6 linear or branched; and R and R' are the same or different and are hydrogen or C.sub.1 to C.sub.12 linear or branched alkyl and can also be phenyl unsubstituted or substituted with at least one halo, amino, nitro, hydroxy, C.sub.1 to C.sub.12 linear or branched alkyl, C.sub.1 to C.sub.12 linear or branched alkoxy or haloalkyl, the alkyl moiety being C.sub.1 to C.sub.6 linear or branched, with an inorganic dehydrating agent.
揭示了一种制备芳香取代不饱和酰胺的方法。该方法包括处理下列化合物:其中Ar是未取代或取代至少一个卤素、氨基、硝基、羟基、C.sub.1到C.sub.12直链或支链烷基、C.sub.1到C.sub.12直链或支链烷氧基或卤代烷基的C.sub.6到C.sub.10芳基;或者其中Ar'是未取代或取代至少一个卤素、氨基、硝基、羟基、C.sub.1到C.sub.12直链或支链烷基、C.sub.1到C.sub.12烷氧基或卤代烷基的C.sub.6到C.sub.10芳基;以及R和R'相同或不同,是氢或C.sub.1到C.sub.12直链或支链烷基,也可以是未取代或取代至少一个卤素、氨基、硝基、羟基、C.sub.1到C.sub.12直链或支链烷基、C.sub.1到C.sub.12直链或支链烷氧基或卤代烷基的苯基,烷基部分为C.sub.1到C.sub.6直链或支链;与无机脱水剂一起处理。