An iridiumcatalyst enables the reductive amination of carbonylgroups with unprecedented substrate scope, selectivity, and activity using formic acid as the hydrogen source (see scheme). The catalyst system provides significant improvement over commonly used boron hydrides.
作者:R. Ian Storer、Diane E. Carrera、Yike Ni、David W. C. MacMillan
DOI:10.1021/ja057222n
日期:2006.1.1
The first enantioselectiveorganocatalyticreductive amination reaction has been accomplished. The development of a new chiral phosphoric acid catalyst has provided a convenient strategy for the enantioselective construction of protected primary amines and provided a highly stereoselective method for the reductive amination of heterocyclic amines. A diverse spectrum of ketone and amine substrates can
Nucleophilic Addition of Organomagnesiums to Aldimines: Scandium Triflate (Sc(OTf)3) as an Effective Catalyst
作者:Susumu Saito、Keiko Hatanaka、Hisashi Yamamoto
DOI:10.1055/s-2001-18755
日期:——
The 1,2-addition of organomagnesium reagents to p-methoxyphenyl(PMP)amine-derived aldimines proceeded effectively in the presence of catalytic amounts of Sc(OTf)3.
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