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Paper | Regular issue | Vol 32, No. 11, 1991, pp.2111-2118
Published online, 1st January, 1970
DOI: 10.3987/COM-99-5785
A Convenient Synthesis of Five-membered Heteroaryl-substituted Pyridines

Min-Jen Shiao,* Li-Hua Shih, Win-Long Chia, and Tay-Yuan Chau

*Institutue of Chemistry, Academia Sinica, 128, Yan-Chiu-Yuan Road, Sec II, Nankang, Taipei,11529, Taiwan, R.O.C.

Abstract

Five-membered heteroarylpyridines (3) or (4) such as furylpyridines, thienylpyridines, imidazolylpyridines and pyrrolylpyridines were obtained regioselectively in appreciable yields (40-67%) by reaction of heteroaryllithium salts with N-ethoxycarbonylpyridinium chloride (1) followed by oxygen oxidation.