One-pot synthesis of 1,2,4,5-tetrasubstituted imidazoles by a tandem three-component reaction of hydroxylamines, aldehydes and 2-azido acrylates
作者:Bao Hu、Ning Ai、Zhao Wang、Xiaoliang Xu、Xiaonian Li
DOI:10.3998/ark.5550190.0013.621
日期:——
The reaction of nitrones, formed in situ by reaction of hydroxylamines and aldehydes, with 2azido acrylates results in the formation of 1,2,4,5-tetrasubstitutedimidazoles has been developed. This three-componentreaction allows for the formation of a diverse array of imidazole derivatives with moderate to excellent yields.
Catalyst-Free Preparation of 1,2,4,5-Tetrasubstituted Imidazoles from a Novel Unexpected Domino Reaction of 2-Azido Acrylates and Nitrones
作者:Bao Hu、Zhao Wang、Ning Ai、Jie Zheng、Xing-Hai Liu、Shang Shan、Zhongwen Wang
DOI:10.1021/ol202650z
日期:2011.12.16
A highly efficient and convenient method for the synthesis of 1,2,4,5-tetrasubstitutedimidazoles from readily accessible 2-azidoacrylates and nitrones has been developed. This reaction proceeded under mild conditions without the assistance of any metal, acid, or base.