An efficient strategy for the para-selective borylation of aromatic esters is described. For achieving high para-selectivity, a new catalytic system has been developed modifying the core structure of the bipyridine. It has been proposed that the L-shaped ligand is essential to recognize the functionality of the oxygen atom of the ester carbonyl group via noncovalent interaction, which provides an unprecedented controlling factor for para-selective C-H activation/borylation.

Transition metal-catalysed direct borylation of hydrocarbons via C–H bond activation has received a remarkable level of attention as a popular reaction in the synthesis of organoboron compounds owing to their synthetic versatility.

An ew concept for the meta-selective borylation of aromatic amides is described. It has been demonstrated that while esters gave para borylations,a mides lead to meta borylations.F or achieving high meta selectivity,a nL -shaped bifunctional ligand has been employed and engages in an O···K noncovalent interaction with the oxygen atom of the moderately distorted amide carbonyl group.This interaction provides exceptional control for meta C À Ha ctivation/borylation.