Sulfuric Acid → HCID 53741545, compound

Participants

Reaction Steps

5g of 5-chloro-3-p-chlorophenyl-1-phenyl-pyrazole-4-acetonitrile and 10 ml of 96 % sulfuric acid are stirred for 4 hours at room temperature. The batch is added to 50 g of ice, the precipitate is separated by vacuum filtering and washed with water. 5-Chloro-3-p-chlorophenyl-1-phenyl-pyrazole-4-acetamide is obtained with a 99 % yield; F 192°-193°.

Provenance & Evidence