Synthesis of 5, 12??diazadibenz [a, h] anthracene

LH Klemm, WO Johnson…

Index: Klemm,L.H. et al. Journal of Heterocyclic Chemistry, 1971 , vol. 8, p. 763 - 768

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Citation Number: 2

Abstract

Abstract 5, 12-Diazadibenz [a, h] anthracene (20) was synthesized in 21% overall yield for seven steps. Salient features of the synthesis include the initial, one-step conversion of trans, trans-1, 4-bis-(β-nitrovinyl) benzene into 2, 2 ″-dinitro-p-terphenyl by Diels-Alder condensation plus elimination, monocyclization of the derived 2, 2 ″-diformylamino-p- terphenyl to give 8-(2-amino-1-phenyl)-phenanthridine (10) in the presence of fortified ...