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.
根据专利权要求1中定义的A为C.sub.2-12-烯基、C.sub.4-8-环烯基或一个基团--C(R).dbd.C(R')--Y,且Y、R、R'、R.sub.1、R.sub.2、R.sub.3和R.sub.3',化合物I的化学式##STR1##可以通过在存在1-12个碳原子的脂肪单羧酸或苯甲酸的碱金属盐或碱土金属盐、环状或N,N-二取代酰胺作为溶剂,特别是N,N-二甲基甲酰胺,并以钯化合物作为催化剂,反应对应的溴苯或碘苯,以简单经济的方式高产率地制备。