申请人:Kanzaki Paper Manufacturing Co., Ltd.
公开号:US04898941A1
公开(公告)日:1990-02-06
A process for preparing a diphenylalkene derivative of the formula [II] ##STR1## which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I] ##STR2## wherein R.sub.1 and R.sub.2 are each substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or substituted or unsubstituted aryl, R.sub.1 and R.sub.2 may form a heteroring together theirwith or with an adjacent benzene ring, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R.sub.12 and R.sub.13 are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
一种制备公式[II]的二苯烯衍生物的过程,其中包括将公式[I]的二苯基丙酸衍生物氧化,其中R1和R2均为取代或未取代的烷基,取代或未取代的烯基,取代或未取代的炔基,取代或未取代的环烷基,取代或未取代的芳基,R1和R2可以与相邻苯环一起形成杂环,R3、R4、R5、R6、R7、R8、R9、R10和R11均为氢原子、卤素原子、取代或未取代的烷基、取代或未取代的羟基或取代或未取代的氨基,R12和R13均为氢原子或取代或未取代的烷基,X为羧基,酰胺,酯或其卤化物。