Mild and simple catalytic systems consisting of molybdenum(VI) dichloride dioxide [MoO2Cl2] as a catalyst and a phosphine as reductant have been developed for the stereospecificdeoxygenation of epoxides to alkenes. The reactions using 1,2‐bis(diphenylphosphino)ethane (dppe) and triphenylphosphine (PPh3) proceed with retention and inversion of stereochemistry, respectively. The mild reaction tolerates
Visible-Light-Activated Nickel Thiolates for C–S Couplings
作者:Guohua Wang、Lei Gao、Yunhui Feng、Luqing Lin
DOI:10.1021/acs.orglett.3c01474
日期:2023.6.16
Thiolates are known as the inhibitors of metal catalysis due to their strong coordination with the metal. Herein, we reported visible-light-induced homolysis of the Ni–S bond to activate the nickel(II) thiolates for the C–S coupling, obviating the use of exogenous photocatalysts and other additives. Various aryl bromides/iodides can efficiently couple with thiols with a wide range of functional groups