conditions, a variety of thioethers are efficiently prepared from readily available benzyl alcohols (primary, secondary, and tertiary) and thiols in the presence of Cu(OTf)2 as the Lewis acid catalysis. This C–S bond formation protocol furnishes exceptional chemoselectivity, and the preliminary mechanism studies show that the reaction should proceed through a Lewis-acid-mediated SN1-type nucleophilic attack
一种新型的
铜催化
硫醚化反应已被开发出来,可以以中等至优异的产率提供
苄基硫醚。在温和且易于操作的条件下,在Cu(OTf) 2作为Lewis酸催化下,由容易获得的
苯甲醇(伯醇、仲醇和叔醇)和
硫醇有效地制备了多种
硫醚。这种C-S键形成方案提供了优异的
化学选择性,初步机制研究表明该反应应通过
路易斯酸介导的S N 1型对原位形成的
碳阳离子的亲核攻击进行。