Sodium Acetate → 3-Chloro-5-methyl-1,3,4,5-tetrahydro-1,5-benzodiazepin-2-one

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Reaction Steps

A mixture of 3.06 g of 3,3-dichloro-5-methyl-1,3,4,5-tetrahydro-1,5-benzodiazepin-2-one, 30 ml of glacial acetic acid, 2.2 g of anhydrous sodium acetate and 86 mg of 5% palladium on charcoal is hydrogenated at atmospheric pressure until the theoretical amount of hydrogen has been absorbed. The suspension is filtered through celite and the solids are washed with 5 ml of acetic acid. Concentration of the filtrate and treatment of the residue with 17 ml of water for 30 min. affords 3-chloro-5-methyl-1,3,4,5-tetrahydro-1,5-benzodiazepin-2-one.

Provenance & Evidence