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

HRID 473877
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HRID 473877 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.C(OCC)(=O)C>C(O)(=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 8857Ethyl AcetateHCID 675056591,1-dimethylethyl 7-(4-amino-3-nitrophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate

생성물 1

HCID 668201741,1-dimethylethyl 7-(3,4-diaminophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate수율 94%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 176Acetic Acid용매

실험 절차

A solution of 1,1-dimethylethyl 7-(4-amino-3-nitrophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (example 8, step 1) (2.3 g, 6.0 mmol), in acetic acid (20 mL) and ethyl acetate (20 mL) was hydrogenated at 45 psi over 10% Pd—C (1.0 g) for 1 h using a Parr apparatus. The catalyst was filtered off and the filtrate was concentrated to give 1,1-dimethylethyl 7-(3,4-diaminophenyl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (2.0 g, 94% yield) as a light yellow oil. MS (EI) for C20H25N3O3: 356 (MH+).

후처리

  1. filtrationThe catalyst was filtered off
  2. concentrationthe filtrate was concentrated

출처 및 근거

ORD 기록
ord-96ceec9ebfd9411abb8f2664a002e199
출처 데이터셋
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08637499B2

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