Palladium-Mediated Three-Component Synthesis of Furo[2,3-<i>b</i>]pyridones by One-Pot Coupling of 3-Iodopyridones, Alkynes, and Organic Halides

Abstract

[reaction: see text] The one-pot assembly of 4-alkoxy-3-iodo-2-pyridones, terminal alkynes, and organic halides has been achieved by integration of two sequential palladium-mediated cross-coupling reactions--Sonogashira and Wacker-type heteroannulation processes--and subsequent deprotection of the alkoxy group to afford furo[2,3-b]pyridones.