作者:Arun Maji、Yernaidu Reddi、Raghavan B. Sunoj、Debabrata Maiti
DOI:10.1021/acscatal.8b02537
日期:2018.11.2
Recently, we have developed a method for catalytic regioselective synthesis of 2-substituted and 3-substituted benzofurans starting from phenols. The choice of reacting partner, olefin versus α,β-unsaturated acid, is critical to dictate the isomeric product formation. Instances are known where these olefinic partners did not complement each other and yield a similar outcome. In the current work, we
最近,我们已经开发了一种从苯酚开始催化区域选择性合成2取代和3取代的苯并呋喃的方法。选择反应伙伴,烯烃还是α,β-不饱和酸,对决定异构产物的形成是至关重要的。已知这些烯烃伙伴彼此不互补且产生相似结果的情况。在当前的工作中,我们解决了这一悖论,重点是(a)正交选择性的起源和(b)预期互补行为的关键要求。实验和计算研究提供了重要的力学见解。发现在迁移插入过程中的静电相容性和在催化步骤中羧酸部分的定位在确定区域选择性方面发挥了至关重要的作用。