par Hinkens, Raymonde ;Vamos, Mária
Référence Journal of the Chemical Society. Perkin Transactions 1, 13, page (1229)
Publication Publié, 1975
Référence Journal of the Chemical Society. Perkin Transactions 1, 13, page (1229)
Publication Publié, 1975
Article révisé par les pairs
Résumé : | 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). |