Orthogonal Selectivity in C–H Olefination: Synthesis of Branched Vinylarene with Unactivated Aliphatic Substitution
作者:Soumitra Agasti、Bhaskar Mondal、Tapas Kumar Achar、Soumya Kumar Sinha、Anjana Sarala Suseelan、Kalman J. Szabo、Franziska Schoenebeck、Debabrata Maiti
DOI:10.1021/acscatal.9b03019
日期:2019.10.4
Oxidative coupling is a useful tool to synthesize vinylarenes. Despite remarkable successes in linear vinylarene, branched vinylarene synthesis has remained underdeveloped. Overcoming this limitation, herein, we report a chelation-assisted oxidative coupling to generate branched olefinated product in high yield. Exclusive branched selectivity was obtained using alkenyl carboxylic acid. Detailed experimental
氧化偶联是合成乙烯基芳烃的有用工具。尽管在线性乙烯基芳烃方面取得了显著成就,但支链乙烯基芳烃的合成仍不发达。克服此限制,在本文中,我们报道了螯合辅助的氧化偶联以高产率产生支化的烯烃化产物。使用链烯基羧酸获得排他性的选择性。详细的实验研究与计算研究相结合表明,β迁移插入,然后通过脱羧途径可用于整体转化。