Ethanol → Morpholine, acetate

Participants

Reaction Steps

Into a suspension of 1.0 g(0.00186 mole) of 4-[NG -nitro-N2 -(6,7-dimethoxy-2-naphthalenesulfonyl)-L-arginyl]morpholine and 0.1 g of palladium black in 30 ml of ethanol and 10 ml of acetic acid was passed hydrogen gas for 60 hours at room temperature. Upon completion of the reaction, the catalyst was filtered off, and the solvent was evaporated under reduced pressure to give a viscous oily residue, which was taken up in methanol and reprecipitated with ether to afford 4-[N2 -(6,7-dimethoxy-2-naphthalenesulfonyl)-L-arginyl] morpholine acetate in the powder form in a yield of 82%.

Provenance & Evidence