Hydrochloric Acid → HCID 20232046, compound

Participants

Reaction Steps

3-(2-t-Butoxycarbonylhydrazino)-5-methyl-6-phenyl-2,5-dihydro-1,2,4-triazine (5.27 g) was dissolved in a saturated methanolic solution of hydrogen chloride (40 ml), and the solution was allowed to stand at room temperature for 3.5 hours. The reaction mixture was evaporated under reduced pressure and the residual solid was recrystallized from ethanol to give colorless crystals of 3-hydrazino-5-methyl-6-phenyl-2,5-dihydro-1,2,4-triazine hydrochloride (3.99 g), m.p. 214°~215° C.

Provenance & Evidence