Polycyclic nitrogen compounds. Part I. Synthesis of new heterotricyclic quinoxalinones with bridgehead nitrogen atoms

EA Adegoke, BI Alo…

Index: Adegoke, E. A.; Alo, Babajide I.; Ogunsulire, F. O. Journal of Heterocyclic Chemistry, 1982 , vol. 19, p. 1169 - 1172

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Citation Number: 9

Abstract

Abstract New tricyclic quinoxalinone skeletons with a fully-reduced ring 'C'-1, 2, 3, 3a- tetrahydropyrrolo [1, 2-α] quin-oxalin-4-one (I-II) and 7, 8, 9, 10-tetrahydropyrido [1, 2-α] quinoxalin-6-one (III-IV) derivatives were obtained by selective hydrogen transfer reductive cyclisation of N-(2-nitrophenyl) pyrrolidine-2-carboxylic acid esters and N-(2-nitrophenyl) piperidine-2-carboxylic acid esters (VIa, b and VIIIa, b), respectively.

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