HCID 2435435, compound → HCID 3732956, compound

Participants

Reaction Steps

To a solution of 75.0 g (0.2 mol) of 2-nitro-N-[1-(phenylmethyl)-4-piperidinyl]-benzenesulphonic acid amide in 2.0 l ethanol was added dropwise, at room temperature, a solution of 174.0 g ( 0.828 mol) of sodium dithionite-dihydrate in 700 ml of water. After the heat of the exothermic reaction had died away the mixture was refluxed for 4.5 hours, then the ethanol was distilled off and the aqueous phase remaining was extracted thoroughly with dichloromethane.

Provenance & Evidence