A Manganese Pre-Catalyst: Mild Reduction of Amides, Ketones, Aldehydes, and Esters
作者:Colin M. Kelly、Robert McDonald、Orson L. Sydora、Mark Stradiotto、Laura Turculet
DOI:10.1002/anie.201709441
日期:2017.12.11
Hey Man(ganese): A newly prepared (N-phosphinoamidinate)manganese pre-catalyst (see Scheme) has been shown to be effective for the hydrosilative reduction of a diverse scope of carbonyl compounds, and in most cases can be used at room temperature. The reaction proceeds under reaction conditions which are competitive with the most effective transition-metal catalysts known for such transformations,
Method for producing amines by homogeneously catalyzed reductive amination of carbonyl compounds
申请人:Riermeier Thomas
公开号:US06884887B1
公开(公告)日:2005-04-26
The invention relates to the preparation of chiral or achiral amines by reaction of aldehydes or ketones with ammonia or primary or secondary amines in the presence of hydrogen and in the presence of homogeneous metal catalysts under mild conditions. Metal catalysts which can be used are complexes of late transition metals with chiral or achiral phosphorus-containing ligands.
Palladium(<scp>ii</scp>)-catalysed ortho-arylation of N-benzylpiperidines
作者:Peng Wen Tan、Maxwell Haughey、Darren J. Dixon
DOI:10.1039/c5cc00410a
日期:——
Pd(II)-catalysed ortho-arylation of benzylic heterocycles with arylboronic acid pinacol esters (Ar-BPin) via directed C-H bond activation to generate the desired biaryl products is reported. This methodology is efficient and applicable to a wide range of functionalised Ar-BPin and benzylic heterocycles, allowing the direct synthesis of important biaryl motifs in modest to good yield.
Highly efficient and eco-friendly synthesis of tertiary amines by reductive alkylation of aldehydes with secondary amines over a Pt nanowires catalyst
作者:Junjie Wu、Shuanglong Lu、Danhua Ge、Hongwei Gu
DOI:10.1039/c5ra12299f
日期:——
A highly efficient and environmentally friendly method for the synthesis of tertiary amines by direct interaction of aldehydes with secondary amines was reported over a Pt NWs catalyst under mild reaction conditions.
On the reductive amination of aldehydes and ketones catalyzed by homogeneous Rh(i) complexes
作者:Vitali I. Tararov、Renat Kadyrov、Armin Börner、Thomas H. Riermeier
DOI:10.1039/b005777k
日期:——
The homogeneously catalyzedreductiveamination of aldehydes and ketones under smooth conditions is reported, showing for the first time, that Rh(I) catalysts based on chelating diphosphines and diphosphinites can be advantageously employed for this reaction, even for the production of chiral amino acid derivatives.