Affiliation:
1. OSPC Division CSIR-Indian Institute of Chemical Technology Habsiguda Hyderabad 500007 India
2. Academy of Scientific and Innovative Research Ghaziabad 201002 India
Abstract
AbstractRh‐catalyzed C−H activation of arenes for oxidative annulations with alkynes stands out as a protocol for polycyclic scaffolds. This perspective drives us to disclose herein a rhodium catalyzed regioselective triple annulation of enaminones with hydroxyl‐alkynoates via double C−H functionalization for polycyclic naphtho‐pyran scaffolds. Secondary coordination of OH in alkynoate dictated the regioselectivity. Initial lactonization occurred chemoselectively on to enamine part via carbo rhodation followed by reductive elimination. This protocol was scalable and has shown high functionality tolerance. KIE studies were done to get insight in to the mechanism, and some downstream transformations were achieved to show the synthetic potential of the method.
Cited by
15 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献