[EN] NITROSODIPHENYLAMINE DERIVATIVES, COMPOSITIONS COMPRISING THEM, AND THE USE THEREOF AS ANTIOXIDANTS AND SPONTANEOUS NITRIC OXIDE DONORS [FR] DERIVES NITROSODIPHENYLAMINIQUES, COMPOSITIONS LES COMPRENANT, ET LEUR UTILISATION COMME ANTIOXYDANTS ET COMME DONNEURS SPONTANES DE MONOXYDE D'AZOTE
Room-Temperature CuI-Catalyzed Amination of Aryl Iodides and Aryl Bromides
作者:Xiaomei Ding、Manna Huang、Zhou Yi、Dongchen Du、Xinhai Zhu、Yiqian Wan
DOI:10.1021/acs.joc.7b00290
日期:2017.5.19
general and effective CuI/N′,N′-diaryl-1H-pyrrole-2-carbohydrazide catalyst system was developed for the amination of aryliodides and bromides at room temperature with good chemoselectivity between −OH and −NH2 groups. Only 5 mol % of CuI and ligands was needed in this protocol to effect the amination of various arylbromides and aryliodides with a wide range of aliphatic and aryl amines (1.3 equiv)
amines and nucleobases have also been used, affording the corresponding coupling products in good to excellent yields. Moreover, this method has been employed for chemoselective C–N arylation of aminophenols and further utilized for the synthesis of carbazole natural products, avoiding the protection and deprotection steps.