4-(Benzyloxy)-3-nitropyridine → 4-(Benzyloxy)pyridin-3-amine

HRID 219418노트

반응식

HRID 219418 반응식
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]=[CH:11][C:10]=1[N+:15]([O-])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H][H]>C1COCC1.[Ni]>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]=[CH:11][C:10]=1[NH2:15])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

5

실험 절차

4-(benzyloxy)-3-nitropyridine (15 g, 65 mmol, 1 eq) was dissolved in THF, then Raney Nickel (2.25 g, 10% w/w) (washed with THF) was added under nitrogen atmosphere and the reaction was stirred at room temperature with 2 kg hydrogen pressure for 6 h. The reaction solution was filtered through celite and the filtrate was concentrated under vacuum to get brown oil. The product was taken to the next step without purification. Yield: 12.3 g (94%). 1HNMR (400 MHz, DMSO-d6): δ 4.86 (s, 2H), 5.18 (s, 2H), 6.88 (d, 1H, J=5.32 Hz), 7.31 (t, 1H, J=3.90 Hz), 7.4 (t, 2H, J=5.08 Hz), 7.5 (t, 2H, J=8.08 Hz), 7.71 (d, J=2.05 Hz, 1H), 7.89 (s, 1H).

후처리

  1. filtrationThe reaction solution was filtered through celite
  2. concentrationthe filtrate was concentrated under vacuum
  3. customto get brown oil
  4. customThe product was taken to the next step without purification

출처 및 근거

ORD 기록
ord-c27e4c9b110e4dce938970574be84c2f
출처 데이터셋
uspto-grants-2012_06
특허 번호
US08198449B2

반응 노트

불러오는 중…