[CH2:1]([N:3]1[C:9]2[CH:10]=[C:11]([N+:14]([O-])=O)[CH:12]=[CH:13][C:8]=2[O:7][CH2:6][CH2:5][CH2:4]1)[CH3:2].O.NN>[Pd].C(O)C>[CH2:1]([N:3]1[C:9]2[CH:10]=[C:11]([NH2:14])[CH:12]=[CH:13][C:8]=2[O:7][CH2:6][CH2:5][CH2:4]1)[CH3:2]9-Ethyl-2-nitro-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocycloheptene (486 mg, 2.19), 10% Palladium on Carbon (50% Wet) (302 mg) and Hydrazine monohydrate (1.00 g, 20.0 mmol) in Ethanol (20 mL) was heated at 60° C. After 4 h, the mixture was filtered and conc. in vacuo. After azeotroping with toluene and drying, 9-Ethyl-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-2-ylamine was isolated in quantitative yield.
Loading…