Synthesis
DOI: 10.1055/s-0036-1588735
special topic
© Georg Thieme Verlag Stuttgart · New York

Iridium-Catalyzed Site-Selective C–H Borylation of 2-Pyridones

Wataru Miura, Koji Hirano*, Masahiro Miura*
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Publication History

Received: 24 January 2017

Accepted after revision: 07 February 2017

Publication Date:
02 March 2017 (eFirst)

Abstract

An iridium-catalyzed site-selective C–H borylation of 2-pyridones has been developed. The site selectivity is predominantly controlled by steric factors, and we can access C4, C5, and C6 C–H on the 2-pyridone ring by the judicious choice of ligand and solvent. Subsequent Suzuki–Miyaura cross-coupling of the borylated products also proceeds to form the corresponding arylated pyridones in good overall yields.

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