Dimethyl acetylenedicarboxylate → HCID 21860268, compound

Participants

Reaction Steps

Using 1.57 mg (5 mmol) of 5-amino-3-(p-dimethylaminophenyl)-1-phenylpyrazole-4-carbonitrile [see Chem. Ber., 99, 3492 (1966)] and 0.85 g (6 mmol) of dimethyl acetylenedicarboxylate, the entitled product having a melting point of 207° to 208° C. was obtained in the same manner as in Example 2-(2).

Provenance & Evidence