Visible-light-promoted oxidative coupling of styrene with cyclic ethers
作者:Golam Kibriya、Debashis Ghosh、Alakananda Hajra
DOI:10.1007/s11426-019-9609-9
日期:2020.1
A new visible-light-promoted oxidative coupling of vinylarenes with cyclic ethers has been developed using rose bengal as photocatalyst and tert-butyl hydrogenperoxide (TBHP) as oxidant under ambient air at room temperature. A library of α-oxyalkylated ketones with broad functionalities has been synthesized in moderate to good yields. A radical mechanism is suggested for the present protocol
Copper-catalyzed dehydrogenative cross-coupling reaction between unactivated ethers and simple ketones mediated by pyrrolidine
作者:Xing-Fen Huang、Zhi-Qiang Zhu、Zhi-Zhen Huang
DOI:10.1016/j.tet.2013.07.085
日期:2013.10
A copper-catalyzed dehydrogenative cross-coupling reaction between unactivated ethers and simpleketones mediated by pyrrolidine has been developed. Under the catalysis of CuBr2 and in the presence of pyrrolidine, either tetrahydrofuran 2a or tetrahydropyran 2b can react smoothly with a series of methyl aryl ketones 1a–m to give desired coupling products 3aa–mb using TBHP as an oxidant. The advantages