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Water → tert-Butyl 4-{3-[ethyl(methylsulfonyl)amino]-4-nitrophenyl}-1,4-diazepane-1-carboxylate

HRID 2251378
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HRID 2251378 반응식
[CH2:1]([N:3]([C:8]1[CH:13]=[C:12](F)[CH:11]=[CH:10][C:9]=1[N+:15]([O-:17])=[O:16])[S:4]([CH3:7])(=[O:6])=[O:5])[CH3:2].[N:18]1([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:24][CH2:23][CH2:22][NH:21][CH2:20][CH2:19]1.C(=O)([O-])[O-].[K+].[K+].O>CS(C)=O>[CH2:1]([N:3]([S:4]([CH3:7])(=[O:6])=[O:5])[C:8]1[CH:13]=[C:12]([N:21]2[CH2:22][CH2:23][CH2:24][N:18]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:19][CH2:20]2)[CH:11]=[CH:10][C:9]=1[N+:15]([O-:17])=[O:16])[CH3:2]
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참가 물질

6

반응물 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 2756058Tert-butyl 1,4-diazepane-1-carboxylateHCID 22272466N-ethyl-N-(5-fluoro-2-nitrophenyl)methanesulfonamide

생성물 1

HCID 22272556tert-Butyl 4-{3-[ethyl(methylsulfonyl)amino]-4-nitrophenyl}-1,4-diazepane-1-carboxylate

시약·촉매·용매 1

HCID 679
Dimethyl Sulfoxide
용매

실험 절차

N-Ethyl-N-(5-fluoro-2-nitrophenyl)methanesulfonamide (3.2 g, 12.2 mmol), tert-butyl 1-homopiperazinecarboxylate (2.5 g) and potassium carbonate (2 g) were heated together in DMSO at 50° C. for 5 hours. The solution was allowed to cool and poured into 500 mL of water. The solid product was collected by filtration, washed with water and dried. The product was purified by flash chromatography (ethyl acetate:petrol 1:1). Yield 2.6 g (48%) 1H NMR (400 MHz, CDCl3) δ 1.16 (t, J=7.33 Hz, 3 H), 1.39 (s, 9 H), 2.0 (br, 2 H), 2.99 (s, 3 H), 3.2 (br, 2 H), 3.54-3.75 (br, 8 H), 6.65 (br d, J=9.3 Hz, 1 H), 6.67 (d, J=2.93 Hz, 1 H), 8.1 (d, J=9.3 Hz, 1 H); MS (ESI+) for C19H30N4O6S m/z 442 (M+).

후처리

  1. temperatureto cool
  2. filtrationThe solid product was collected by filtration
  3. washwashed with water
  4. customdried
  5. customThe product was purified by flash chromatography (ethyl acetate:petrol 1:1)

출처 및 근거

ORD 기록
ord-7039d383b97f4be88a12ca27e714def4
출처 데이터셋
uspto-grants-2008_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07319097B2

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