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1,1-dimethylethyl 7-(4-amino-3-nitrophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate → 1,1-dimethylethyl 7-(3,4-diaminophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate

HRID 241178
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HRID 241178 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:9]=[CH:10][C:11]3[O:17][CH2:16][CH2:15][N:14]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:13][C:12]=3[CH:25]=2)=[CH:4][C:3]=1[N+:26]([O-])=O.[H][H]>C(OCC)(=O)C.[Pd]>[NH2:26][C:3]1[CH:4]=[C:5]([C:8]2[CH:9]=[CH:10][C:11]3[O:17][CH2:16][CH2:15][N:14]([C:18]([O:20][C:21]([CH3:23])([CH3:22])[CH3:24])=[O:19])[CH2:13][C:12]=3[CH:25]=2)[CH:6]=[CH:7][C:2]=1[NH2:1]
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참가 물질

5

반응물 2

HCID 675056591,1-dimethylethyl 7-(4-amino-3-nitrophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylateHCID 178418361HCID 178418361, 화합물

생성물 1

HCID 668201741,1-dimethylethyl 7-(3,4-diaminophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate수율 6,774.2%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 8857Ethyl Acetate
용매

실험 절차

To a solution of 1,1-dimethylethyl 7-(4-amino-3-nitrophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (Example 26, 1.35 g, 3.1 mmol) in ethyl acetate (30 mL) was added 5% palladium on carbon (wet). The resulting suspension was subjected to an atmosphere of hydrogen (40 psi) for 15 h. The catalyst was then removed by filtration through celite. The filtrate was concentrated to provide 1,1-dimethylethyl 7-(3,4-diaminophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (748 mg, 210 mmol, 68% yield) as an orange viscous syrup. MS (EI) for C20H25N3O3: 356 (MH+).

후처리

  1. customThe catalyst was then removed by filtration through celite
  2. concentrationThe filtrate was concentrated

출처 및 근거

ORD 기록
ord-ea881aa48fcb4f71a4eccf90a7b36cb6
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08648066B2

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