Abstract
Control of site selectivity for organic synthesis in general, and for transition-metal-catalyzed
C–H functionalization in particular, is an important and challenging task. Steric
interactions have been widely used to control reaction selectivity, but these strategies
are largely limited to proximity sites. Recently, control of site selectivity through
remote steric interactions has emerged as an attractive strategy that can enable selective
reactions at distal sites from a steric marker. This review will cover recent developments
in this area, with a focus on borylation reactions and transition-metal-catalyzed
C–H activation.
Key words
steric control - site selectivity - remote control - C–H activation - transition-metal
catalysis