Aniline → HCID 86649084, 화합물

HRID 1099014노트

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HRID 1099014 반응식
[C:1]1([CH:7]2[N:12]3[CH:8]2[CH:9](O)O[CH:11]3[CH:13]2[CH:15]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[NH:14]2)[CH:6]=[CH:5]C=CC=1.NC1C=CC=CC=1.[BH3-]C#N.[Na+].C([O-])(O)=O.[Na+]>CO.O.C(O)(=O)C>[C:7]1([NH:12][CH2:11][C@H:13]2[C@H:15]([C:16]3[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=3)[NH:14]2)[CH:1]=[CH:6][CH:5]=[CH:9][CH:8]=1

참가 물질

8

실험 절차

In a flamed-dried round bottom flask equipped with a rubber septum in order to maintain a nitrogen atmosphere was added 2a (58.8 mg, 0.2 mmol) and aniline (43.7 μl, 0.48 mmol) dissolved in 5 ml of anhydrous MeOH. The reaction was stirred for 10 minutes, then NaCNBH3 (40.2 mg, 0.64 mmol) was added. The reaction was allowed to stir for 5 hours while maintaining pH 7 through addition of acetic acid when required. NaHCO3 was then carefully added to the reaction mixture and stirred for 5 minutes. Water was added and the aqueous mixture was extracted 3 times with Et2O. The collected organic phases were washed with water, then brine, and dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified using flash column chromatography (silica gel; 5% MeOH in CH2Cl2) to afford the title compound as a white solid in 99% yield. Mp=96-97° C. 1H NMR (200 MHz. CDCl3) δ:7.40-7.10 (m, 7H), 6.78-6.62 (m, 3H), 3.51 (dd, J=13.6 Hz, 4.2 Hz, 1H), 3.4 (very bs, 2H), 3.28 (dd, J=13.6 Hz, 7.5 Hz, 1H), 2.86 (d, J=2.8 Hz, 1H), 2.50-2.35 (m, 1H) ppm. 13C NMR (50 MHz. CDCl3) δ: 148.3, 139.7, 129.5, 129.4, 128.8, 127.4, 125.8, 118.1, 115.3, 113.2, 46.4, 40.3, 38.0 ppm. Rf=0.14 (7:3 hexanes/EtOAc).

후처리

  1. customIn a flamed-dried round bottom flask equipped with a rubber septum in order
  2. temperatureto maintain a nitrogen atmosphere
  3. stirringto stir for 5 hours
  4. temperaturewhile maintaining pH 7
  5. stirringstirred for 5 minutes
  6. extractionthe aqueous mixture was extracted 3 times with Et2O
  7. washThe collected organic phases were washed with water
  8. dry with materialbrine, and dried over Na2SO4
  9. concentrationconcentrated under reduced pressure
  10. customThe crude product was purified

출처 및 근거

ORD 기록
ord-1f22ec6e03f7438d8d2c7fffab164c41
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08143375B2

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