Rh^III–Catalyzed Direct Heteroarylation of Unactivated C(sp³)–H with N-Heteroaryl Boronates

Abstract

Disclosed herein is a rhodium(III)-catalyzed direct heteroarylation reaction between unactivated aliphatic C(sp 3 )−H bonds in 2-alkylpyridines and heteroaryl organoboron reagents. This catalytic protocol is compatible with various heterocyclic boronates containing ortho-and meta-pyridine, pyrazoles, furan, and quinoline with strong coordination capability. The achievement of this methodology provides an efficient route to build new C(sp 3 )−heteroaryl bonds.