The reaction of hexafluoropropene (HFP) with 2-aminobenzamide afforded 2-(1, 2, 2, 2- tetrafluoroethyl)-4 (3H)-quinazolinone (4) and N-(2-cyanophenyl)-2, 3, 3, 3- tetrafluoropropionamide (5) in ca. 1: 1 ratio, which is essentially independent of the reaction temperatures ranging from room temperature to 100° C. The formation of the two products is explained in terms of the competitive cyclization of the imidoyl fluoride intermediate, the N- ...
