Synthesis and chemistry of 1, 3-diazabiphenylenes

V Bakthavachalam, M d'Alarcao…

Index: Bakthavachalam, Venkatesalu; d'Alarcao, Marc; Leonard, Nelson J. Journal of Organic Chemistry, 1984 , vol. 49, # 2 p. 289 - 295

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Citation Number: 15

Abstract

Two independent syntheses of the 1, 3-diazabiphenylene ring system have been developed. The first of these involves thermal extrusion of nitrogen from a condensed pyridazine precursor, and the second utilizes a diethynylpyrimidine in a cobalt-catalyzed co- oligomerizatioh reaction. The 1, 3-diazabiphenylenes undergo facile transformations to isoquinolines upon treatment with either acid or base. The intermediacy of 1, 3- ...