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
已经开发了一种方便、有效、温和且简单的策略,用于通过苄醇与芳炔的分子间加成来合成卤代烯。反应在溴化铁(III)或氯化铁的 1,2-二溴乙烷中,在室温空气中进行,无添加剂。在温和的反应条件下,在 0.5-1 小时内以高到极好的收率获得了具有高区域和立体选择性(E/Z 高达 99:1)的烯基溴化物和氯化物。