(E)-Vinyl bromides were readily prepared from 1,1-dibromoalkenes by microwave irradiation within 1 min using a diethyl phosphonate/EtONa/EtOH system. This method utilizes cheap and environmentally friendly reagents, requires only a short reaction time, and gives (E)-vinyl bromides in high stereoselectivities and high yields. (C) 2002 Elsevier Science Ltd. All rights reserved.
(E)-烯基
溴化物可在1分钟内从1,1-微
溴烯烃中通过微波辐照法得到,使用(diethyl
磷酸酯/EtONa/
乙醇)的体系。该方法使用了廉价且环保的试剂,反应时间极短,得到的(E)-烯基
溴化物具有高立体选择性和高产率。2002年,Elsevier 科学出版有限公司。 版权所有。