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Sodium hydride → 3-Oxa-tricyclo[3.2.2.02,4]nonane-2-carboxylic acid N-(4-nitro-3-trifluoromethyl-phenyl)-hydrazide

HRID 1591703
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HRID 1591703 반응식
[H-].[Na+].[N+:3]([C:6]1[CH:11]=[CH:10][C:9]([NH:12][C:13]([C:15]23[O:21][CH:20]2[CH:19]2[CH2:22][CH2:23][CH:16]3[CH2:17][CH2:18]2)=[O:14])=[CH:8][C:7]=1[C:24]([F:27])([F:26])[F:25])([O-:5])=[O:4].C1(P([NH:42]O)(C2C=CC=CC=2)=O)C=CC=CC=1>CN(C=O)C>[N+:3]([C:6]1[CH:11]=[CH:10][C:9]([N:12]([C:13]([C:15]23[O:21][CH:20]2[CH:19]2[CH2:18][CH2:17][CH:16]3[CH2:23][CH2:22]2)=[O:14])[NH2:42])=[CH:8][C:7]=1[C:24]([F:27])([F:25])[F:26])([O-:5])=[O:4]
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참가 물질

5

반응물 3

HCID 24758Sodium hydrideHCID 419256DiphenylphosphinylhydroxylamineHCID 235461863-Oxa-tricyclo[3.2.2.02,4] nonane-2-carboxylic acid (4-nitro-3-trifluoromethyl-phenyl)-amide

생성물 1

HCID 235461873-Oxa-tricyclo[3.2.2.02,4]nonane-2-carboxylic acid N-(4-nitro-3-trifluoromethyl-phenyl)-hydrazide수율 15.4%

시약·촉매·용매 1

HCID 6228
Dimethylformamide
용매

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온도
70 °C

실험 절차

NaH (60% in mineral oil, 7.9 mg, 0.20 mmol, 1.4 eq) was added to the solution of 11E (50 mg, 0.14 mmol, 1 eq) in DMF (3 mL). The reaction mixture was heated at 70° C. for 2 h. The reaction was cooled to rt and diphenylphosphinylhydroxylamine (52 mg, 0.22 mmol, 1.6 eq, made according to the procedure of Colvin, E. W. et.al. Tetrahedron Lett. 23, 3835-6 (1982)) was added. The reaction mixture was stirred at rt overnight and quenched by addition of water (3 mL) and extracted with EtOAc (2×20 mL). The combined organics were washed with H2O (25 mL), dried over Na2SO4 and concentrated under reduced pressure. Purification by flash chromatography on silica gel eluting with 10% EtOAc/CH2Cl2 gave 8.0 mg (0.022 mmol, 15.4%) of compound 11F as a yellow solid. HPLC conditions: 93% at 3.54 min (YMC S5 ODS 4.6×50 mm, 10%-90% aqueous methanol over 4 minute gradient with 0.2% H3PO4, detecting at 220 nm).

후처리

  1. temperatureThe reaction was cooled to rt
  2. addition23, 3835-6 (1982)) was added
  3. customquenched by addition of water (3 mL)
  4. extractionextracted with EtOAc (2×20 mL)
  5. washThe combined organics were washed with H2O (25 mL)
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated under reduced pressure
  8. customPurification by flash chromatography on silica gel eluting with 10% EtOAc/CH2Cl2

출처 및 근거

ORD 기록
ord-83f1c18afb0c479996ad48ddb5a43549
출처 데이터셋
uspto-grants-2007_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07291637B2

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