Water → N-[2-(6-methyl-2-pyridyl)ethyl]-4-(N-acetyl-N-methylamino)benzenesulfonamide

HRID 1377020

반응식

HRID 1377020 반응식
C[NH:2][CH2:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([CH3:11])[N:6]=1.[C:12]([N:15]([C:17]1[CH:22]=[CH:21][C:20]([S:23](Cl)(=[O:25])=[O:24])=[CH:19][CH:18]=1)[CH3:16])(=[O:14])[CH3:13].C([O-])(=O)C.[Na+].O>C(O)C>[CH3:11][C:7]1[N:6]=[C:5]([CH2:4][CH2:3][NH:2][S:23]([C:20]2[CH:19]=[CH:18][C:17]([N:15]([C:12](=[O:14])[CH3:13])[CH3:16])=[CH:22][CH:21]=2)(=[O:25])=[O:24])[CH:10]=[CH:9][CH:8]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 2931464-(N-methylacetamido)benzene-1-sulfonyl chlorideHCID 517045Sodium AcetateHCID 13400642Methyl[2-(6-methylpyridin-2-yl)ethyl]amine

생성물 1

HCID 22918888N-[2-(6-methyl-2-pyridyl)ethyl]-4-(N-acetyl-N-methylamino)benzenesulfonamide

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

N-Methyl-N-[2-(6-methyl-2-pyridyl)ethyl]amine (14.66 g, 97.7 mmol) was added to a suspension of the 4-(N-acetyl-N-methylamino) benzenesulfonyl chloride (24.2 g, 97.3 mmol) prepared in Preparative Example 12 and sodium acetate (24.0 g) in ethanol (140 ml). The obtained mixture was stirred at room temperature overnight, followed by the addition of water. The obtained mixture was extracted with ethyl acetate. The organic layer was washed with water and a saturated aqueous solution of common salt, dried over magnesium sulfate, and concentrated to give N-[2-(6-methyl-2-pyridyl)ethyl]-4-(N-acetyl-N-methylamino)benzenesulfonamide as a colorless oil. This oil was dissolved in 4N aqueous hydrochloric acid. The solution was heated under reflux for 2 hours. The pH of the mixture was adjusted to about 8 by the addition of an aqueous solution of sodium hydrogencarbonate. The resulting mixture was extracted with ethyl acetate. The organic layer was washed with water and a saturated aqueous solution of common salt, dried over magnesium sulfate, and concentrated to give an oily residue. This residue was purified by flash column chromatography (chloroform/methanol/aqueous ammonia=97:3:0.3) to give the title compound as a light brown oil (25.8 g, overall yield of two steps: 83%).

후처리

  1. extractionThe obtained mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materiala saturated aqueous solution of common salt, dried over magnesium sulfate
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-52bbb4e2db13484b88b54ffe70ac002d
출처 데이터셋
uspto-grants-1997_09
특허 번호
US05663414

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