Access to C4-arylated benzoxazoles from 2-amidophenol through C–H activation
作者:Kanchanbala Sahoo、Priyanka Pradhan、Niranjan Panda
DOI:10.1039/d0ob00061b
日期:——
A Pd-catalyzed aerobic approach to access C4-aryl benzoxazoles by tandem C-H ortho-arylation and acid-mediated annulation of 2-amidophenol has been presented. The directing potential of the -NHCOR group over the -OH group was exploited for selective arylation adjacent to the amide group. Deuterium labeling experiments suggest that palladation predominantly occurs adjacent to the -NHCOR group and is