5-(o-fluorophenyl)-1,3-dihydro-7-[1-(hydroxyimino)ethyl]-1,3-dimethyl-2H-1,4-benzodiazepin-2-one → 7-(1-aminoethyl)-5-(o-fluorophenyl)-1,3-dihydro-1,3-dimethyl-2H-1,4-benzodiazepin-2-one

Participants

Reaction Steps

A solution of 4.1 g (12.08 mmol) of 5-(o-fluorophenyl)-1,3-dihydro-7-[1-(hydroxyimino)ethyl]-1,3-dimethyl-2H-1,4-benzodiazepin-2-one in 150 ml of 2 N methanolic ammonia is treated with 5 g of Raney-nickel paste and the suspension is stirred in a hydrogen atmosphere for 24 hours. After filtration of the catalyst and removal of the solvent in vacuo, there is obtained 7-(1-aminoethyl)-5-(o-fluorophenyl)-1,3-dihydro-1,3-dimethyl-2H-1,4-benzodiazepin-2-one as a foam of melting point 48°-50°.

Provenance & Evidence