C–H acylation of aniline derivatives with α-oxocarboxylic acids using ruthenium catalyst

Abstract

An efficient and convenient synthetic strategy for Ruthenium (II)-catalyzed ortho-acylation of N-(2-pyridyl)-anilines using α-oxycarboxylic acids as acyl sources is described. The procedure can be smoothly proceeded under mild conditions, showing...

Rh(iii)-catalyzed regioselective versatile indole derivatization: delivering potential of rare β-(1H-indol-2-yl)-β-amino acids in one pot

“…1 Although various coordinating directing groups (DGs) have been designed to promote selective C–H functionalization, the intact remains of the DG are still a major hurdle in the development of selective transformations (Scheme 1a). 2 The past few years have witnessed two major strategies to solve this problem: (1) using the DG in a subsequent annulation reaction with the installed functional group (FG) to form an extra heterocycle, 3 and (2) removing the DG in situ to produce the desired products 4 (Scheme 1a). Moreover, some experiments show a shift of the DG to other positions.…”