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Report | Regular issue | Vol 20, No. 2, 1983, pp.255-262
Published online, 1st January, 1970
DOI: 10.3987/R-1983-02-0255
Polycondensed Nitrogen Heterocycles. Part XIV. Reactivity of 3-Diazopyrroles: Pyrrolo[3,4-c]pyridazine

Gaetano Dattolo, Girolamo Cirrincione, Anna Maria Almerico, and Enrico Aiello

*Dipartimento di Chimica e Tecnologie Farmaceutiche, Università degli Studi di Palermo , Via Archirafi n 32 90123 Palermo, Italy

Abstract

3-Diazopyrroles 2a,b were prepared in excellent yields by diazotization of the corresponding amines 1a,b. Compounds 2a,b, by acid catalyzed intramolecular coupling reaction led to the new ring system pyrrolo[3,4-c]pyridazine 3a,b.