申请人:Ciba-Geigy Corporation
公开号:US04564479A1
公开(公告)日:1986-01-14
Compounds of the formula I ##STR1## in which A is C.sub.2-12 -alkenyl, C.sub.4-8 -cycloalkenyl or a grouping--C(R).dbd.C(R')--Y and Y, R, R', R.sub.1, R.sub.2, R.sub.3 and R.sub.3 ' are as defined in patent claim 1, can be prepared in high yields in a simple and economical manner by reacting corresponding bromobenzenes or iodobenzenes with a compound HA in the presence of an alkali metal salt or alkaline earth metal salt of an aliphatic monocarboxylic acid having 1-12 C atoms or benzoic acid, of a cyclic or N,N-disubstituted amide as the solvent, particularly N,N-dimethylformamide, and of a palladium compound which can, if desired, contain arsenic or phosphorus, as the catalyst.
公式为I的化合物##STR1##其中A是C.sub.2-12烯丙基,C.sub.4-8环烯丙基或一个基团--C(R).dbd.C(R')--Y,而Y,R,R',R.sub.1,R.sub.2,R.sub.3和R.sub.3 '的定义如专利权要求书中所述,可以通过将相应的溴苯或碘苯与化合物HA在脂肪族一元羧酸盐或苯甲酸的碱金属盐或碱土金属盐存在下,在溶剂中进行反应,特别是在环状或N,N-二取代酰胺中,如N,N-二甲基甲酰胺中,并以可以包含砷或磷的钯化合物作为催化剂,以简单经济的方式高产率制备。