... 1457 Oxonitriles are versatile reagents and have been exten- sively utilised in heterocyclic synthesis (1-3). Continuing our interest in the chemistry of /3-oxonitriles, we ... Heterocyclic Chem., 16, 1109 (1979). (2) MH Elnagdi, MRH Elmoghayar, EAA Hafez and HH Alnima, J. Org. ...