Trifluoromethyl group in the synthesis of heterocyclic compounds: New and efficient synthesis of 3-aryl-4-aminocinnolines
摘要:
A novel base induced transformation of hydrazones 3a-f derived from trifluoromethylaryl ketones and arylhydrazines was found to produce 3-aryl-4-aminocinnolines 4a-g in 52-75% yield. The initial step of the reaction is believed to involve abstraction of Hf from hydrazone.