Solvent- and transition metal-free amide synthesis from phenyl esters and aryl amines
作者:Sergey A. Rzhevskiy、Alexandra A. Ageshina、Gleb A. Chesnokov、Pavel S. Gribanov、Maxim A. Topchiy、Mikhail S. Nechaev、Andrey F. Asachenko
DOI:10.1039/c8ra10040c
日期:——
A general, economical, and environmentally friendly method of amide synthesis from phenyl esters and arylamines was developed. This new method has significant advantages compared to previously reported palladium-catalyzed approaches. The reaction is performed transition metal- and solvent-free, using a cheap and environmentally benign base, NaH. This approach enabled us to obtain target amides in
开发了一种由苯酯和芳基胺合成酰胺的通用、经济和环保的方法。与先前报道的钯催化方法相比,这种新方法具有显着优势。该反应在无过渡金属和无溶剂的情况下使用廉价且对环境无害的碱 NaH 进行。这种方法使我们能够以高产率和高原子经济性获得目标酰胺。
An efficient, eco-friendly and sustainable tandem oxidative amidation of alcohols with amines catalyzed by heteropolyanion-based ionic liquids via a bifunctional catalysis process
eco-friendly and sustainable method for the tandem oxidative amidation of alcohols with amines has been reported. Using heteropolyanion-based ionic liquids as the catalyst and tert-butyl hydroperoxide as the oxidant, this amidation reaction is operationally straightforward and provides a series of primary, secondary and tertiary amidesderivatives in moderate to good yields. Solvent-free media, microwave-promoted
amidation of unactivated esters with amines under transition-metal-free and solvent-freeconditions, affording a series of amides in good to excellent yields at room temperature. In particular, an environmentally friendly and practical workup procedure, which circumvents the use of organic solvents and chromatography in most cases, was disclosed. Moreover, the gram-scale production of representative products
在本文中,开发了一种NaO t Bu介导的合成方法,用于在无过渡金属和无溶剂的条件下将未活化的酯与胺直接酰胺化,从而在室温下以良好或优异的收率提供了一系列酰胺。特别地,公开了一种环境友好且实用的后处理程序,其在大多数情况下避免了有机溶剂和色谱的使用。此外,代表产品3a,3w和3au的克级生产通过应用操作简单,可持续和实用的程序有效地实现了这一目标。此外,该方法也适用于有价值的分子的合成,例如莫氯贝胺(一种强效抗抑郁药),苯达尼尔和芬呋喃(两种市售农业杀菌剂)。这些结果表明该方案具有简化工业中酰胺合成的潜力。同时,对所有目标产品的定量绿色指标进行了评估,这表明本协议在环境友好性和可持续性方面优于已报道的协议。最后,还进行了额外的实验和计算计算,以阐明这种转换的机理见解,
Bis-aryl amide compounds and methods of use
申请人:Dimauro F. Erin
公开号:US20070072862A1
公开(公告)日:2007-03-29
The present invention comprises a new class of compounds useful for the prophylaxis and treatment of protein kinase mediated diseases, including autoimmune disease and inflammation. In one embodiment, the compounds have a general Formula I
wherein A
1
, A
2
, A
3
, A
4
, L, R
1
, R
2
and R
3
are defined herein. The invention also comprises pharmaceutical compositions including one or more compounds of the present invention, methods of use such as treatment of Lck and/or c-Kit kinase mediated diseases by administering the compounds of the invention, or compositions including one or more compounds of the invention, and intermediates and processes useful for the preparation of compounds of the present invention.
Ce(<scp>iii</scp>)-catalyzed highly efficient synthesis of pyridyl benzamides from aminopyridines and nitroolefins without external oxidants
作者:Zhengwang Chen、Xiaowei Wen、Yiping Qian、Pei Liang、Botao Liu、Min Ye
DOI:10.1039/c7ob03113k
日期:——
An efficient Ce(iii)-catalyzed synthesis of amides and oxazolo[4,5-b]pyridines from 2-aminopyridines and nitroolefins via CC bond cleavage has been developed.