4-Nitrophenyl trifluoroacetate → HCID 178524480, compound

Participants

Reaction Steps

3-Hydroxypyridazine-4-carboxylic acid (1.40 g) was dissolved in pyridine (20 ml) at 40° C, and p-nitrophenyl trifluoroacetate (2.82 g) was dropwise added thereto. The resultant mixture was stirred at 40° to 50° C for 1 hour and concentrated under reduced pressure to dryness. The residue was washed with chloroform and acetone in order and dried to give the objective compound (2.21 g). M.P. 233° C (decomp.).

Provenance & Evidence