The hydrogenation of imines to amines in the presence of catalytic amounts of zinctriflate has been demonstrated for the first time. In addition, an efficient procedure for the reductivehydroamination of alkynes to amines is presented using zinctriflate as a catalyst precursor. In both protocols a variety of different functional groups are tolerated, and the reactions proceed smoothly in high yields
Implication of a Silyl Cobalt Dihydride Complex as a Useful Catalyst for the Hydrosilylation of Imines
作者:Cassandre C. Bories、Marion Barbazanges、Etienne Derat、Marc Petit
DOI:10.1021/acscatal.1c03886
日期:2021.11.19
Here, we describe the formation and use of silyl cobalt (III) dihydride complexes as powerful catalysts for the hydrosilylation of a variety of imines starting from a low-valent well-defined cobalt (I) complex. The reaction is efficient at low catalyst loadings with a diverse range of imines bearing various protecting groups, as well as aliphatic ketimines and quinoline. Kinetics, DFT calculations