Benzene C–H Etherification via Photocatalytic Hydrogen-Evolution Cross-Coupling Reaction
作者:Yi-Wen Zheng、Pan Ye、Bin Chen、Qing-Yuan Meng、Ke Feng、Wenguang Wang、Li-Zhu Wu、Chen-Ho Tung
DOI:10.1021/acs.orglett.7b00463
日期:2017.5.5
Aryl ethers can be constructed from the direct coupling between the benzene C–H bond and the alcohol O–H bond with the evolution of hydrogen via the synergistic merger of photocatalysis and cobalt catalysis. Utilizing the dual catalyst system consisting of 3-cyano-1-methylquinolinum photocatalyst and cobaloxime, intermolecular etherification of arenes with various alcohols and intramolecular alkoxylation
可以通过光催化作用和钴催化作用的协同结合,通过苯的C–H键与醇的O–H键之间的直接偶联以及氢的释放来构建芳基醚。利用由3-氰基-1-甲基喹啉光催化剂和钴肟组成的双催化剂体系,完成了芳烃与各种醇的分子间醚化作用以及3-苯基丙醇的分子内烷氧基化反应并形成了色烷。这些反应在非常温和的条件下进行,唯一的副产物是当量的氢气。