Hydrogen chloride-ethyl acetate → HCID 68579408, compound
Reaction equation
[CH3:1][CH:2]([C:4]1[C:14]2[O:13][CH2:12][CH2:11][N:10](C(OC(C)(C)C)=O)[CH2:9][C:8]=2[CH:7]=[CH:6][CH:5]=1)[CH3:3].C(OCC)(=O)C.[ClH:28]>C(OCC)(=O)C>[ClH:28].[CH3:3][CH:2]([C:4]1[C:14]2[O:13][CH2:12][CH2:11][NH:10][CH2:9][C:8]=2[CH:7]=[CH:6][CH:5]=1)[CH3:1]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of tert-butyl 9-(1-methylethyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (330 mg, 1.13 mmol), ethyl acetate (6 ml) and 4N hydrogen chloride-ethyl acetate solution (3 ml) was stirred at room temperature for 1 hr, 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 (106 mg, 97.2%) as a solid.