Preparation of Imidazo[1,2-c]pyrimidinones from a Chloropyrimidine and an Electron Poor ω-Allylic Amine.-In connection with another study on the preparation of ring-fused diazepines the unexpected title compounds such as (III), (V), (VI), and (IX) are prepared. The structure of (IX) is determined by X-ray analysis. -(HEANEY, F.; BOURKE, S.; BURKE, C.; CUNNINGHAM, D.; MCARDLE, P.; J. Chem. Soc., Perkin Trans. 1 [old] (1998) 15, 2255-2257; Chem. Dep., Univ. Coll., Galway, Ire.; EN)