m-Chloroperbenzoic acid → HCID 21272315, compound

Participants

Reaction Steps

To a solution of N-(4-methylthiophenyl)-1-phenyl-1-H-pyrazol-3-amine (1.4 g) in dichloromethane (100 ml) at 0° was added a solution of 3-chloroperbenzoic acid (0.9 g) in dichloromethane (20 ml) and the mixture stirred and allowed to reach room temperature over 1 hour. The solution was washed with dilute sodium hydroxide solution, dried over magnesium sulphate, filtered and evaporated to an oil. The oil was dissolved in hot ether and gradual evaporation to a small volume gave the title compound as a colourless solid (1.2 g), collected by filtration, mp 123°-124°.

Provenance & Evidence