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January 1, 1975Journal of the Chemical Society Perkin Transactions 1

Synthesis of di- and tetra-substituted 1,4,5,8-tetra-azaphenanthrenes (pyrazino[2,3-f]quinoxalines)

R. Nasielski‐Hinkens M. Benedek‐Vamos

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Abstract

6-Nitroquinoxalines (I) are aminated by hydroxylamine to 5-amino-6-nitroquinoxalines (II). These are reduced to 5,6-diaminoquinoxalines (III) which condense with appropriate α-dicarbonyl compounds to yield substituted 1,4,5,8-tetra-azaphenanthrenes (IV).

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Nasielski‐Hinkens et al. (1975) studied this question.

synapsesocial.com/papers/6aa86dc4a2ea35927a1e9820 https://doi.org/10.1039/p19750001229

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