The Journal of Organic Chemistry

A convenient palladium-catalyzed coupling approach to 2, 5-disubstituted pyridines

JW Tilley, S Zawoiski

Index: Tilley, Jefferson W.; Zawoiski, Sonja Journal of Organic Chemistry, 1988 , vol. 53, # 2 p. 386 - 390

Full Text: HTML

Citation Number: 120

Abstract

2, 5-Dibromopyridine has been found to undergo a regioselective palladium-catalyzed coupling reaction with terminal acetylenes and arylzinc halides to give the corresponding 2- alkynyl-5-brome and 2-aryl-5-bromopyridines, respectively, in 70%-90% isolated yields. To complement this chemistry, the triflate derived from 2-methyl-5-pyridinol was found to participate in a palladium-catalyzed reaction with terminal acetylenes leading to the ...