transition‐metal‐free carboarylation of alkynes with commercial and readily available alcohols as alkylating agents was realized in the presence of an environmentally benign calcium catalyst. Thereby, a novel protocol for the one‐step synthesis of highly congested, all‐carbon tetrasubstituted alkenes, as incorporated in potentially bioactive, complex dihydronaphthalene, chromene and dihydroquinoline
在环境无害的
钙催化剂存在下,
炔烃与市售和现成的
醇类作为烷化剂的第一个无过渡
金属的碳芳基化反应得以实现。从而,提供了一种新的协议,用于一步合成高度拥挤的全碳四取代烯烃,并将其掺入具有潜在
生物活性的复杂二氢
萘,苯并二氢
喹啉结构中。该反应具有空前的,特别宽的底物范围,良好的官能团耐受性和在温和的反应条件下简单的实验操作的特点。