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Note | Regular issue | Vol 53, No. 2, 2000, pp.423-432
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8766
Synthesis of Two Novel Tricyclic Rings: Triazolo[4,5-g]quinolines and Pyrido[2,3-g]quinoxalines Derived from 6,7-Diaminoquinolines

Paolo Sanna,* Antonio Carta, and Giuseppe Paglietti

*Dipartimento Farmaco-Chimico-Tossicologico - University of Sassari, Via Muroni 23/a - 07100 Sassari, Italy

Abstract

A general simple route for the synthesis of triazolo[4,5-g]quinolines and pyrido[2,3-g]quinoxalines is described. The heterocycles obtained were fully characterised by their spectroscopical properties. A revision of the nitration of the 2,3-dichloroacetanilide is also discussed, since it afforded the request nitro derivative to build up the key intermediate 6,7-diaminoquinolines.