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.
制备公式[II]的二苯基烯衍生物的方法,包括氧化公式[I]的二苯基烷酸衍生物,其中R.sub.1和R.sub.2分别是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、R.sub.1和R.sub.2可以与相邻苯环一起形成杂环,R.sub.3、R.sub.4、R.sub.5、R.sub.6、R.sub.7、R.sub.8、R.sub.9、R.sub.10和R.sub.11分别是氢原子、卤原子、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,R.sub.12和R.sub.13分别是氢原子或取代或未取代的烷基,X是羧基、酰胺、酯或其卤化物。