申请人:Ciba-Geigy Corporation
公开号:US04691058A1
公开(公告)日:1987-09-01
The invention relates to a novel process for producing compounds of the formula I ##STR1## in which R.sup.1 is for example phenyl, and R.sup.2 and R.sup.3 are for example cyclohexyl. With application of the phase-transfer catalysis method, a corresponding compound of the formula II ##STR2## is reacted, in the presence of water, with hydroxide ions, especially with alkali metal hydroxide or alkaline-earth metal hydroxide.
该发明涉及一种生产I式化合物的新工艺,其中R1例如为苯基,而R2和R3例如为环己基。应用相转移催化方法,在水的存在下,将式II化合物与羟基离子反应,特别是与碱金属羟基或碱土金属羟基反应。