A novel Lewis acid InBr3-catalyzed direct cross-coupling reaction of arylboronic acids with diorgano diselenides and ditellurides without any additive has been developed. The reactions generated the corresponding unsymmetrical diorgano monoselenides and monotellurides in good to excellent yields. The method has advantages of broad substrate scope, simple operation, mild reaction conditions and high effectiveness. A possible reaction mechanism was proposed.
我们开发了一种新型
路易斯酸InBr3催化的直接交叉偶联反应,使用芳基
硼酸与二烷基二
硒化物和二
碲化物,无需任何添加剂。反应产生了相应的非对称二烷基单
硒化物和单
碲化物,产率良好至优秀。该方法具有广泛的底物范围、简单的操作、温和的反应条件和高效率的优点。我们还提出了可能的反应机制。