Methanesulfonic Acid → N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-pyrazole-3-carboxamide methanesulfonate

Participants

Reaction Conditions

Reaction Steps

A solution of 0..062 g of methanesulfonic acid in 2 ml of acetone is added dropwise to a solution of 0.30 g of the compound obtained in example 195 in 3 ml of acetone. The white crystals formed upon cooling to 0° C. are filtered off, washed with acetone and dried under vacuum to give 0.30 g of the expected salt. m.p.=218° C.

Provenance & Evidence