Hydrazine hydrate (1:1) → HCID 18940551, compound

Participants

Reaction Steps

A suspension of 1-benzyl-4-(phthalimidomethyl)-1,3,4,5-tetrahydro-1,5-benzodiazepin-2(2H)-one (9.82 g, 20 mmol) and hydrazine monohydrate (16 g, 35 mmol) in ethanol (350 ml) was refluxed for 3 hours. The reaction mixture was cooled and subjected to filtration and washed with chloroform. The filtrate was concentrated under reduced pressure. The concentrate was suspended in chloroform, which was again subjected to filtration. The filtrate was concentrated under reduced pressure to afford 8.5 g (yield 86%) of the titled compound as an oily product.

Provenance & Evidence