Solvent-Free N-Alkylation of Amides with Alcohols Catalyzed by Nickel on Silica-Alumina
作者:Aubin Charvieux、Louis Le Moigne、Lorenzo G. Borrego、Nicolas Duguet、Estelle Métay
DOI:10.1002/ejoc.201901291
日期:2019.10.31
To date, the N‐alkylation of amides with alcohols has not been studied with non‐noble metal base heterogeneous catalyst. Herein, a range of amide was efficiently N‐alkylated with various alcohols using cheap and easy to handle Ni/SiO2‐Al2O3.
迄今为止,尚未使用非贵金属碱多相催化剂研究酰胺与醇的N-烷基化。在此,使用廉价且易于处理的Ni / SiO 2 -Al 2 O 3将各种酰胺有效地与各种醇进行N-烷基化。
Direct amidation of non‐activated carboxylic acid and amine derivatives catalyzed by TiCp
<sub>2</sub>
Cl
<sub>2</sub>
carboxylic acid and aminederivatives catalyzed by TiCp2Cl2. Arylacetic acid derivatives reacted with different amines to afford the corresponding amides in good to excellent yield except of aniline. Aryl formic acids failed to react with aniline but smoothly reacted with aliphatic amines and benzylamine in moderate to good yield, fatty acids reacting with benzyl and aliphatic amines give amides in good
Hafnium-Catalyzed Direct Amide Formation at Room Temperature
作者:Helena Lundberg、Hans Adolfsson
DOI:10.1021/acscatal.5b00385
日期:2015.6.5
[Hf(Cp)2Cl2], as catalyst. Amino acids are transformed into their corresponding amides without racemization, and the catalyst displays full selectivity for the amidation of carboxylic acids overesters. Electronic properties of the carboxylic acids were found to have a strong influence on the rate of the amidation reaction, and the need for a balanced amount of molecularsieves was observed to be
Dehydrogenative Amide Synthesis: Azide as a Nitrogen Source
作者:Zhenqian Fu、Jeongbin Lee、Byungjoon Kang、Soon Hyeok Hong
DOI:10.1021/ol302915g
日期:2012.12.7
A new atom-economical strategy to amide linkage from an azide and alcohol liberating hydrogen and nitrogen was developed with an in situ generated ruthenium catalytic system. The reaction has broad substrate generality including dials for the synthesis of cyclic imides.