Catalytic Hydrogenation of Carboxamides and Esters by Well-Defined Cp*Ru Complexes Bearing a Protic Amine Ligand
摘要:
A novel catalytic method for the straightforward hydrogenation of carboxamides and esters to primary alcohols has been developed. Chiral modification in the ligand sphere of the well-defined Cp*Ru catalyst molecule opens up a new possibility for the development of an enantioselective hydrogenation of racemic substrates via dynamic kinetic resolution.
An efficient and atom-economical route to <i>N</i>-aryl amino alcohols from primary amines
作者:Zhen Xiao、Juanjuan Li、Qiang Yue、Qian Zhang、Dong Li
DOI:10.1039/c8ra07355d
日期:——
In this paper we reported a novel method for generation of N-aryl amino alcohols from N,N-disubstituted picolinamides through reduction/ring-opening reaction with NaBH4. The N,N-disubstituted picolinamides can be easily obtained from primary amines after convenient condensation with picolinic acid and coupling with cyclic ethers. The whole route proceeded under simple and mild conditions with high
A new palladium-mediated approach to 4-N-arylamino-1-butanols from peroxidic tetrahydrofuran and primary aromatic amines
作者:Henry F. Russell、John B. Bremner、Jennifer Bushelle-Edghill、Melissa R. Lewis、Stacey R. Thomas、Floyd Bates
DOI:10.1016/j.tetlet.2006.12.136
日期:2007.2
Reaction of primary aromatic amines with peroxidic tetrahydrofuran (THF) in the presence of hydrogen and 10%, palladium on carbon catalyst results in THF ring opening to give 4-N-arylamino-1-butanols in a good yield. The reaction mechanism is believed to involve a free-radical sequence resulting in an imino alcohol subsequently reduced to product. (c) 2007 Elsevier Ltd. All rights reserved.
Catalytic Hydrogenation of Carboxamides and Esters by Well-Defined Cp*Ru Complexes Bearing a Protic Amine Ligand
A novel catalytic method for the straightforward hydrogenation of carboxamides and esters to primary alcohols has been developed. Chiral modification in the ligand sphere of the well-defined Cp*Ru catalyst molecule opens up a new possibility for the development of an enantioselective hydrogenation of racemic substrates via dynamic kinetic resolution.