HCID 22674219, compound → HCID 60108777, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 1-(3-benzenesulfonylmethyl-2-nitro-phenyl)-4-methyl-piperazine (25 g) in tetrahydrofuran (500 mL) prepared by heating to 45° C. was added to a pre-hydrogenated suspension of Pearlman's catalyst (20% Pd(OH)2/C; 0.5 g) in tetrahydrofuran (20 mL). Stirring is continued under a hydrogen atmosphere at 45° C. until the reaction is complete (ca. 29 hours). After cooling, the catalyst is filtered off on Solkafloc™ (10 g) and washed with tetrahydrofuran (50 mL). The filtrate is concentrated under vacuum to give 24.9 g of 2-benzenesulfonylmethyl-6-(4-methyl-piperazin-1-yl)-phenylamine as a foam.

Provenance & Evidence