Collect. Czech. Chem. Commun. 1996, 61, 957-961

Annelation to the Quinazoline Ring. Preparation of Some Substituted 2H-Imidazo- and 2,3-Dihydropyrimido[1,2-c]quinazolines

Katarína Špirková and Štefan Stankovský

Department of Organic Chemistry, Slovak Technical University, 812 37 Bratislava, Slovak Republic


Preparation of some substituted 2H-imidazo[1,2-c]quinazolin-3-ones (2a-2f) and 2,3-dihydropyrimido[1,2-c]quinazolin-4-ones (3a-3c) by reaction of corresponding 3H-quinazoline-4-thiones (1a-1d) with amino acid esters is described. IR, 1H NMR and 13C NMR spectra of the compounds synthesized are presented.

Keywords: Imidazo[1,2-c]quinazoline; Pyrimido[1,2-c]quinazoline.