Heterogeneouscopper catalysis enabled photoinducedC−Harylations under exceedingly mild conditions at room temperature. The versatile hybridcoppercatalyst provided step‐economical access to arylated heteroarenes, terpenes and alkaloid natural products with various aryl halides. The hybridcoppercatalyst could be reused without significant loss of catalytic efficacy. Detailed studies in terms of
Iron(<scp>ii</scp>) bromide-catalyzed oxidative coupling of benzylamines with ortho-substituted anilines: synthesis of 1,3-benzazoles
作者:Kovuru Gopalaiah、Sankala Naga Chandrudu
DOI:10.1039/c4ra12490a
日期:——
An iron(II) bromide-catalyzed oxidativecoupling of benzylamines with 2-amino/hydroxy/mercapto-anilines has been developed, allowing the synthesis of a diversity of substituted 1,3-benzazoles in good to excellent yields. This transformation is compatible with a wide range of functional groups. The method is practical, economical and employs molecular oxygen as an oxidant.
Catalyst-Free Synthesis of 2-Arylbenzothiazoles in an Air/DMSO Oxidant System
作者:Shiqing Han、Renhe Hu、Xiaotong Li、Yao Tong、Dazhuang Miao、Qiang Pan、Zengqiang Jiang、Haifeng Gan
DOI:10.1055/s-0035-1561575
日期:——
A straightforward strategy for the synthesis of 2-arylbenzothiazoles from 2-aminothiophenol and aryl aldehydes in air/DMSO oxidant system has been developed. This reaction is operationally simple, proceeds without catalysts, tolerates a wide range of functionalities, and provides desired products in good to excellent yields.