Stereo-selective synthesis of cis-alkenes/halo-alkenes by reaction of diphenylmethane with ethynylbenzenes via sp3 C–H bond activation promoted by iron salts
作者:Jianguo Yang、Di Chen、Weiliang Bao
DOI:10.1016/j.tetlet.2012.05.083
日期:2012.8
A stereo-selective reaction for the synthesis of cis-alkenes/halo-alkenes from diphenylmethane and ethynylbenzenes was developed in the presence of iron(III) bromide or chloride. Alkenyl bromides/chlorides were obtained in comparatively good yields in chlorobenzene under mild reaction conditions. (C) 2012 Elsevier Ltd. All rights reserved.
FeX<sub>3</sub>-Promoted Intermolecular Addition of Benzylic Alcohols to Aromatic Alkynes: A Mild and Efficient Strategy for the Synthesis of Alkenyl Halides
作者:Kai Ren、Min Wang、Lei Wang
DOI:10.1002/ejoc.200901020
日期:2010.1
A convenient, effective, mild and simple strategy has been developed for the synthesis of alkenyl halides by the intermolecular addition of benzylic alcohols to aromatic alkynes. The reactions were carried out in the presence of iron(III) bromide or chloride in 1,2-dibromoethane without additives in air at room temperature. Alkenyl bromides and chlorides were obtained with high regio- and stereoselectivity