N-HETEROCYCLIC CARBENE (NHC) CATALYZED SYNTHESIS OF HYDROXAMIC ACIDS
申请人:Zhang Yugen
公开号:US20100105921A1
公开(公告)日:2010-04-29
A process for preparing hydroxamic acids is provided. The process comprises reacting an aldehyde with a nitroso compound in the presence of a N-heterocyclic carbene (NHC) catalyst.
N-Heterocyclic Carbene (NHC)-Catalyzed Direct Amidation of Aldehydes with Nitroso Compounds
作者:Fong Tian Wong、Pranab K. Patra、Jayasree Seayad、Yugen Zhang、Jackie Y. Ying
DOI:10.1021/ol8004276
日期:2008.6.1
NHC-catalyzed direct amidation of aldehydes with nitroso compounds is a powerful method for the synthesis of N-arylhydroxamic acids. A variety of aryl, alkyl, alkenyl, and heterocyclic aldehydes were found to give excellent yields of the corresponding N-arylhydroxamic acids. This chemistry was also extended to the synthesis of chiral N-arylhydroxamic acids by kinetic resolution of a-branched aldehydes, a domino amidation-redox amination reaction of acrolein, and a three-component reaction for the synthesis of N-arylaziridines.
US8143423B2
申请人:——
公开号:US8143423B2
公开(公告)日:2012-03-27
[EN] N-HETEROCYCLIC CARBENE (NHC) CATALYZED SYNTHESIS OF HYDROXAMIC ACIDS<br/>[FR] SYNTHÈSE CATALYSÉE DE CARBÈNE N-HÉTÉROCYCLIQUE D'ACIDES HYDROXAMIQUES
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2008115153A1
公开(公告)日:2008-09-25
[EN] A process for preparing hydroxamic acids is provided. The process comprises reacting an aldehyde with a nitroso compound in the presence of a N-heterocyclic carbene (NHC) catalyst. [FR] L'invention concerne un procédé de préparation d'acides hydroxamiques. Ce procédé consiste à mettre en réaction un aldéhyde avec un composé nitrosé en présence d'un catalyseur de carbène N-hétérocyclique.