Practical Synthesis of Amides via Copper/ABNO-Catalyzed Aerobic Oxidative Coupling of Alcohols and Amines
作者:Susan L. Zultanski、Jingyi Zhao、Shannon S. Stahl
DOI:10.1021/jacs.6b03931
日期:2016.5.25
A modular Cu/ABNO catalystsystem has been identified that enables efficient aerobic oxidative coupling of alcohols and amines to amides. All four permutations of benzylic/aliphatic alcohols and primary/secondary amines are viable in this reaction, enabling broad access to secondary and tertiary amides. The reactions exhibit excellent functional group compatibility and are complete within 30 min-3
Polymer-anchored Ru(II) complex as an efficient catalyst for the synthesis of primary amides from nitriles and of secondary amides from alcohols and amines
作者:Sk Manirul Islam、Kajari Ghosh、Anupam Singha Roy、Rostam Ali Molla
DOI:10.1002/aoc.3233
日期:2014.12
Its catalytic activity was evaluated for the preparation of primaryamidesfromaqueous hydration of nitriles in neutral condition. A range of nitriles were successfully converted to their corresponding amides in good to excellent yields. The catalyst was also effective in the preparation of secondary amidesfrom the coupling of alcohols and amines. The catalyst can be facilely recovered and reused
Simple RuCl3-Catalyzed Amide Synthesis from Alcohols and Amines
作者:Subhash Chandra Ghosh、Soon Hyeok Hong
DOI:10.1002/ejoc.201000362
日期:2010.8
3 , an N-heterocycliccarbene (NHC), and pyridine, was developed. Of the screened NHC precursors, a less bulky one gave better yields for modestly sterically hindered substrates. In a search for the true catalytic intermediates, Grubbs catalysts were found to be active for the amidation of alcohols under basic conditions, suggesting that an Ru complexsupported by an NHC ligand can catalyze the reaction
[EN] PROCESS OF FORMING AN AMIDE<br/>[FR] PROCÉDÉ DE FORMATION D'UN AMIDE
申请人:UNIV NANYANG TECH
公开号:WO2011034506A1
公开(公告)日:2011-03-24
A process is provided for the synthesis of an amide. A primary or secondary amine and a primary alcohol, with the amine and the alcohol being either moieties of different reactants or moieties of the same molecule, are contacted in the presence of a Ruthenium (II) catalyst. The Ruthenium (II) catalyst is free of a phosphine ligand. The process is also carried out in the absence of a phosphine. Providing the Ruthenium (II) catalyst includes providing an N-heterocyclic carbene.
Well-Defined N-Heterocyclic Carbene Based Ruthenium Catalysts for Direct Amide Synthesis from Alcohols and Amines
作者:Yao Zhang、Cheng Chen、Subhash Chandra Ghosh、Yongxin Li、Soon Hyeok Hong
DOI:10.1021/om901020h
日期:2010.3.22
Well-defined N-heterocycliccarbene based ruthenium complexes were developed as highly active catalysts for direct amide synthesis from alcohols and amines. A catalytic amount of a base such as KOtBu was essential to initiate the catalytic cycle. Activity of the Ru complexes was comparable with the reported in situ Ru catalysts. These catalysts provided mechanistic insight suggesting a Ru hydride species
明确定义的基于N-杂环卡宾的钌络合物被开发为高活性催化剂,可直接由醇和胺合成酰胺。催化量的碱(例如KO t Bu)对于启动催化循环至关重要。Ru配合物的活性与报道的原位Ru催化剂相当。这些催化剂提供了机理上的见解,表明氢化钌作为一种活性催化中间体。氢化钌的生成对于游离醛的酰胺化至关重要。