Dimethylformamide diethylacetal → HCID 178484266, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 10 g (41.3 mmol) of 5-amino-4-cyano-3-(4-dimethylamino-phenylamino)-pyrazole [for preparation see: Arch.Pharm.(Weinheim) 326, 245 (1993)] in 8.75 ml (49.5 mmol) of N,N-dimethylformamide diethyl acetal (97%) and 200 ml of toluene is heated under reflux for 1 hour. The reaction mixture is then cooled to approx. 30° C. and filtered and the filter residue is washed with toluene, yielding the title compound; m.p. 281-282° C. (decomp.).

Provenance & Evidence