Improved synthesis of 4, 4′-diamino-2, 2′-bipyridine from 4, 4′-dinitro-2, 2′-bipyridine-N, N′-dioxide

P Kavanagh, D Leech

Index: Kavanagh, Paul; Leech, Donal Tetrahedron Letters, 2004 , vol. 45, # 1 p. 121 - 123

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Citation Number: 34

Abstract

A superior synthetic route to 4, 4′-diamino-2, 2′-bipyridine has been developed. This procedure compares favorably with existing methods, producing 4 times the yield previously reported. In addition, mild reaction conditions are utilized, allowing a considerably more efficient production, and subsequent purification, of the diamino complex.