BNAH-mediated free radical addition to aromatic imines
作者:Meizhong Jin、Dong Zhang、Li Yang、Youcheng Liu、Zhongli Liu
DOI:10.1016/s0040-4039(00)01217-x
日期:2000.9
Benzyl radical is added regioselectively to the carbon–nitrogen double bond of aromatic imines by UV irradiation (λ>300 nm) of a ternary mixture of benzyl bromide/aromatic imines/1-benzyl-1,4-dihydronicotinamide (BNAH) in acetonitrile via a BNAH-mediated photoinduced electron transfer mechanism.
Ruthenium nanoparticle catalyzed selective reductive amination of imine with aldehyde to access tertiary amines
作者:Bin Li、Shun Liu、Qiao Lin、Yan Shao、Shiyong Peng、Yibiao Li
DOI:10.1039/c8cc05437a
日期:——
of the most frequently used transformations in organic synthesis. Herein, we developed a novel ruthenium nanoparticle embedded ordered mesoporous carbon catalyst (Ru–OMC) and a new hydrosilylation process for the synthesis of tertiary amines. We present a direct reductive amination of imines (CN bond) with aldehydes (CO bond) using hydrosilane as the reducing reagent under mild conditions. Moreover,
The direct reductive N-benzylation of imines by reaction with benzyl bromide derivatives, in the presence of [RuCl2(p-cymene)]2catalyst and PhSiH3, is performed under mild conditions without additional base. This reaction proceeds by a tandem iminehydrosilylation/nucleophilic substitution with benzyl bromide derivatives to result the tertiary amines.