with vinyl bromides catalyzed by palladium-phosphine complexes results in the respective N-vinylazoles in 30-99% yields. This reaction with cis- and trans-beta-bromostyrenes is stereospecific giving the respective products with full retention of configuration.
[反应:见正文]
钯-膦配合物催化的各种
吡咯(
吡咯,
吲哚,
咔唑及其衍
生物)和
吩噻嗪与
乙烯基溴的
乙烯基化反应产生相应的N-
乙烯基唑,产率为30-99%。与顺式和反式-
β-溴苯乙烯的反应是立体定向的,从而使各个产物具有完全保留的构型。