Ethyl Acetate → HCID 68580357, compound

Participants

Reaction Steps

A solution (5 ml) of tert-butyl 9-phenyl-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (390 mg, 1.20 mmol) and ethyl acetate (1 ml) in 4N hydrogen chloride-ethyl acetate was stirred for 1 hr at room temperature, and the solvent was evaporated under reduced pressure. The residue was recrystallized from a mixed solvent of methanol and ether to give the desired product (232 mg, 73.9%) as a solid.

Provenance & Evidence