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Paper | Regular issue | Vol 36, No. 4, 1993, pp.777-783
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6237
Synthesis of 2-Cyanamino-4,6-diphenylpyridine-3-carbonitrile

Pedro Victory,* José I. Borell, Joan Cirujeda, and Anton Vidal-Ferran

*Departament de Química Orgànica, CETS Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, E-08017 Barcelona, Spain

Abstract

The nucleophilic displacement of bromo, alkylthio and alkylsulphonyl groups from pyridine systems by cyanamide is studied in order to obtain a previously unreported 2-cyanaminopyridine-3-carbonitrile. A one-step synthesis of the same compound by cyclization in basic medium of the non-isolated Michael adduct of (E)-1,3-diphenylpropenone and propanedinitrile is also described.