HCID 20373042, compound → HCID 178518872, compound

Participants

Reaction Steps

44.6 g of 4-(benzyloxy)-8-chloro-6-phenyl-1H-s-triazolo[4,3-a][1,5]benzodiazepine-1,5-dione in 400 ml of ethanol containing 2.0 g of 10% palladium-on-charcoal is hydrogenated at an initial hydrogen pressure of 40 p.s.i. After 0.1 mole of hydrogen has been absorbed, the reaction is stopped, filtered and the solvent evaporated. The residue is triturated with ether and the title compound filtered off and dried.

Provenance & Evidence