N-[1-(3-nitrobenzyl)indol-5-ylcarbonyl]-2-methylbenzene sulphonamide → N-[1-(3-aminobenzyl)indol-5-ylcarbonyl]-2-methylbenzene sulphonamide

Participants

Reaction Steps

The nitrobenzylindole (Example 3) (2.7 g) was dissolved in methanol (125 ml) and ethyl acetate (125 ml), and 10% palladium on charcoal (0.5 g) added. The reaction mixture was hydrogenated in a Parr bottle at 50 p.s.i. with shaking until hydrogen uptake was complete (approximately 1 hour). The catalyst was filtered off through Celite and the solvent removed in vacuo to give N-[1-(3-aminobenzyl)indol-5-ylcarbonyl]-2-methylbenzene sulphonamide as a foam. This crude product was used in the next step without purification.

Provenance & Evidence