取代溴苯的钯催化偶联反应  

Palladium catalysed Cross-coupling Reactions of Substituted Bromobenzenes

作　　者：李耀华[1] 陈兵[1] 徐寿颐[1] 

机构地区：[1]清华大学化学系,北京100084

出　　处：《西北民族学院学报（自然科学版）》2001年第4期1-4,共4页Journal of Northwest Minorities University(Natural Science )

摘　　要：以 4 -氟溴苯、3,4 -二氟溴苯、3,4 ,5 -三氟溴苯、4 -碘溴苯、4 -甲氧基溴苯、4 -丙基溴苯为原料 ,分别与 2 -甲基 - 3-丁炔 - 2 -醇发生钯催化偶联反应 ,合成了 6个苯基炔醇液晶用中间体 .分别在 4 0℃、70℃、89℃ ,用两种不同活性催化剂条件下 ,测定了 6种反应原料发生钯催化偶联反应所需时间及相应产率 .从而可分析出温度、催化剂。Six liquid crystals intermediates were synthesized by palladium catalysed cross couling reactions with six substituted bromobenzenes and 2 methy1 3 butyne 2 0l.The Reaction times and yields were determined under the different temperature and different catalysts.The activities of Palladium catalysed cross coupling reactions of substituted bromobenzenes were studied.

关 键 词：取代溴苯 钯催化偶联反应 液晶 中间体 苯基炔醇 

分 类 号：O753.2[理学—晶体学] O623.412.2