Efficient Synthesis of 3,5,6‐Trisubstituted‐1,2,4‐triazines in the Brønsted Acidic Ionic Liquid, 1‐n‐Butylimidazolium Tetrafluoroborate ([Hbim]BF₄)

Abstract

3,5,6‐Trisubstituted‐1,2,4‐triazines were synthesized in a one‐pot reaction with acid hydrazide, 1,2‐diketone, and ammonium acetate in the Brønsted acidic ionic liquid, 1‐n‐butyl imidazolium tetrafluoroborate ([Hbim]BF₄).

Keywords:

• acid hydrazides
• aliphatic and aromatic 1,2‐diketones
• ammonium acetate
• ionic liquid (IL)
• 3,5,6‐trisubstituted 1,2,4‐triazines

Acknowledgments

T. M. P. thanks the Council of Scientific and Industrial Research (CSIR), New Delhi, for the award of Research Fellowships. The authors also acknowledge financial assistance from the Department of Science and Technology (DST), New Delhi, Project No. SR/S5/OC‐23/2002.