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Acetic Acid → 1-(5-bromo-4-methylpyridin-2-yl)-2,2,2-trifluoro-N-(4-methoxybenzylidene)ethanamine

HRID 1502439
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HRID 1502439 반응식
[Br:1][C:2]1[C:3]([CH3:15])=[CH:4][C:5]([C:8](O)(O)[C:9]([F:12])([F:11])[F:10])=[N:6][CH:7]=1.[CH3:16][O:17][C:18]1[CH:25]=[CH:24][C:21]([CH2:22][NH2:23])=[CH:20][CH:19]=1.C(O)(=O)C>C1(C)C=CC=CC=1>[Br:1][C:2]1[C:3]([CH3:15])=[CH:4][C:5]([CH:8]([N:23]=[CH:22][C:21]2[CH:24]=[CH:25][C:18]([O:17][CH3:16])=[CH:19][CH:20]=2)[C:9]([F:12])([F:11])[F:10])=[N:6][CH:7]=1
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참가 물질

5

반응물 3

HCID 176Acetic AcidHCID 754524-MethoxybenzylamineHCID 711150501-(5-Bromo-4-methylpyridin-2-yl)-2,2,2-trifluoroethane-1,1-diol

생성물 1

HCID 711153411-(5-bromo-4-methylpyridin-2-yl)-2,2,2-trifluoro-N-(4-methoxybenzylidene)ethanamine수율 74.4%

시약·촉매·용매 1

HCID 1140Toluene용매2회

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온도
110 °C

실험 절차

A solution of 1-(5-bromo-4-methylpyridin-2-yl)-2,2,2-trifluoroethane-1,1-diol (163.1 mg; 0.5702 mmol) in 2.0 mL toluene was added at room temperature to a solution of 4-methoxybenzylamine (118 μL; 0.858 mmol) and acetic acid (49 μL; 0.854 mmol) in 2.0 mL toluene. A scoop of oven-dried 3 A molecular sieves was added, and the reaction mixture heated at 110° C. for 3 days. The mixture was poured into saturated aqueous sodium bicarbonate and extracted twice with dichloromethane. The combined organic extracts were dried over magnesium sulfate, filtered, and concentrated. The crude product was purified via flash chromatography on silica gel (24 g silica, solvent gradient: 0-100% ethyl acetate in dichloromethane) to yield 164.2 mg of the title compound. LCMS (ESI): M-(4-methoxybenzaldehyde)+H=269.2; 1H NMR (400 MHz, DMSO)S 8.69 (s, 1H), 8.57 (s, 1H), 7.80 (d, J=8.7 Hz, 2H), 7.66 (s, 1H), 7.05 (d, J=8.7 Hz, 2H), 5.28 (q, J=8.0 Hz, 1H), 3.82 (s, 3H), 2.41 (s, 3H).

후처리

  1. customA scoop of oven-dried 3 A molecular sieves
  2. additionwas added
  3. additionThe mixture was poured into saturated aqueous sodium bicarbonate
  4. extractionextracted twice with dichloromethane
  5. dry with materialThe combined organic extracts were dried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude product was purified via flash chromatography on silica gel (24 g silica, solvent gradient: 0-100% ethyl acetate in dichloromethane)

출처 및 근거

ORD 기록
ord-b8dd73841c7d4b89ad97ade1dcb581a9
출처 데이터셋
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09206175B2

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