Formic Acid → HCID 15580716, compound

Participants

Reaction Steps

A mixture of 1.85 g. of 3-amino-1,5-bis(p-chlorophenyl)-2-pyrazoline (prepared as described above) and 10.0 ml. of a mixture of formic acid and acetic anhydride (Example 15) is allowed to remain at room temperature for 2 hours, then water is added and the mixture is filtered to collect a semi-solid. The solid is dissolved in dichloromethane and the solution is columnized and recrystallized twice as for Example 26 (A) to yield 1.10 g. of the product of the Example as off-white crystals, m.p. 198°-200° C.

Provenance & Evidence