An Improved Synthesis of 1H-1,2,4-Triazoles from C-Triphenylphosphinimino-hydrazones

Article abstract of DOI:10.1055/s-1986-31774

1-Phenyl-1H-1,2,4-triazoles 5a-h are prepared in good yields by reaction of the triphenylphosphine imide 1 with acyl chlorides 2a-h and subsequent base treatment of the intermediate phosphonium salts 3a-h.