4-tert-Pentylphenol → 5-Nitro-2-(4-(tert-pentyl)phenoxy)pyridine

HRID 929440

반응식

HRID 929440 반응식
Cl[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][N:3]=1.[C:11]([C:16]1[CH:21]=[CH:20][C:19]([OH:22])=[CH:18][CH:17]=1)([CH2:14][CH3:15])([CH3:13])[CH3:12].C([O-])([O-])=O.[K+].[K+]>CS(C)=O>[N+:8]([C:5]1[CH:6]=[CH:7][C:2]([O:22][C:19]2[CH:20]=[CH:21][C:16]([C:11]([CH2:14][CH3:15])([CH3:12])[CH3:13])=[CH:17][CH:18]=2)=[N:3][CH:4]=1)([O-:10])=[O:9]

참가 물질

5

반응물 3

HCID 66434-tert-PentylphenolHCID 11430Potassium CarbonateHCID 783082-Chloro-5-nitropyridine

생성물 1

HCID 896483345-Nitro-2-(4-(tert-pentyl)phenoxy)pyridine수율 97%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

실험 절차

Following procedure A, 2-chloro-5-nitropyridine (303 mg, 1.91 mmol, 1.00 eq) and 4-tert-pentylphenol (397 mg, 2.42 mmol, 1.27 eq) were dissolved in DMSO (6 mL). Anhydrous K2CO3 (403 mg, 2.92 mmol, 1.53 eq) was added and the reaction mixture was stirred at room temperature for 7 h. After extraction with Et2O, the crude product was purified by flash column chromatography (SiO2; EtOAc/petrolether 1:100) to afford the title compound as colourless solid (530 mg, 1.85 mmol, 97% yield). Rf=0.31 (EtOAc/PE 1:20). HRMS (ESI) calcd. for C16H19N2O3+ [M+H]+ 287.1390. found: 287.1381. 1H NMR (400 MHz, CDCl3) δ 9.07-9.05 (m, 1H, aromatic H), 8.45 (dd, J=9.4, 2.4 Hz, 1H, aromatic H), 7.40 (d, J=8.6 Hz, 2H, aromatic H), 7.09 (d, J=8.6 Hz, 2H, aromatic H), 6.99 (d, J=9.2 Hz, 1H, aromatic H), 1.67 (q, J=7.4 Hz, 2H, Ar—C(CH3)2CH2CH3), 1.31 (s, 6H, Ar—C(CH3)2CH2CH3), 0.73 (t, J=7.4 Hz, 3H, Ar—C(CH3)2CH2CH3). 13C NMR (101 MHz, CDCl3) δ 167.17, 150.46, 147.34, 145.20, 140.27, 134.90, 127.56, 120.72, 111.28, 37.89, 37.06, 28.55, 9.26.

후처리

  1. extractionAfter extraction with Et2O
  2. customthe crude product was purified by flash column chromatography (SiO2; EtOAc/petrolether 1:100)

출처 및 근거

ORD 기록
ord-38b33f08ec6e4dca896e712d3e709253
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09296682B2

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