As. Kiselyov, TRIFLUOROMETHYL GROUP IN THE SYNTHESIS OF HETEROCYCLIC-COMPOUNDS - NEW AND EFFICIENT SYNTHESIS OF 3-ARYL-4-AMINOCINNOLINES, Tetrahedron letters, 36(9), 1995, pp. 1383-1386
A novel base induced transformation of hydrazones 3a-f derived from tr
ifluoromethylaryl ketones and arylhydrazines was found to produce 3-ar
yl-4-aminocinnolines 4a-g in 52-75% yield. The initial step of the rea
ction is believed to involve abstraction of Hf from hydrazone.