申请人:KANZAKI PAPER MANUFACTURING CO., LTD.
公开号:EP0257591A2
公开(公告)日:1988-03-02
A process for preparing a diphenylalkene derivative of the formula [II]
which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I]
wherein R₁ and R₂ 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, R₁ and R₂ may form a heteroring together therewith or with an adjacent benzene ring, R₃, R₄, R₅, R₆, R₇, R₈, R₉, R₁₀ and R₁₁ are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R₁₂ and R₁₃ are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
一种制备式[II]二苯基烷烃衍生物的工艺
其中包括氧化式[I]的二苯基烷酸衍生物
其中 R₁ 和 R₂ 各自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、取代或未取代的芳烷基或取代或未取代的芳基,R₁ 和 R₂ 可与之或与相邻的苯环一起形成杂环、R₃、R₄、R₅、R₆、R₇、R₈、R₉、R₁₀ 和 R₁₁ 各为氢原子、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 各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。