作者:Liang Fu、Meike Niggemann
DOI:10.1002/chem.201406503
日期:2015.4.20
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。