Hydrazine hydrate (1:1) → HCID 21317713, compound

Participants

Reaction Steps

1.1 g (0.00376 mol) of 7-chloro-1,3-dihydro-5-phenyl-2H-thieno[2,3-e]-1,4-diazepine-2-thione are dissolved in 400 ml of absolute methanol with warming and 1 ml of 100% hydrazine hydrate is added. The solution is concentrated to 50 ml and left to crystallize in a refrigerator. After filtration under vacuum and drying, there is obtained 7-chloro-2-hydrazino-5-phenyl-3H-thieno[2,3-e]-1,4-diazepine as colorless crystals, melting at 204°-207° C. (decomposition from 185° C.).

Provenance & Evidence