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乙基溴化镁与末端炔烃反应生成炔基Grignard试剂,后者与芳硒基溴作用较高产率地制得了炔基硒醚.通过炔基硒醚与溴化氢在苯中的加成反应,立体选择地合成了(E)-α-溴代烯基硒醚.
Ethyl magnesium bromide reacts with terminal alkyne to form alkynyl Grignard reagent, which can produce alkynylselenyl ether with higher selectivity to aryl selenide.By addition of alkynylselenide and hydrogen bromide in benzene (E) - [alpha] -bromoenylselenide is synthesized stereospecifically.