4-Toluenesulfonyl chloride → N-((4-bromo-5-methylthiophen-2-yl)methyl)-N-(2,2-dimethoxyethyl)-4-methylbenzenesulfonamide

HRID 1668965노트

반응식

HRID 1668965 반응식
[Br:1][C:2]1[CH:3]=[C:4]([CH2:8][NH:9][CH2:10][CH:11]([O:14][CH3:15])[O:12][CH3:13])[S:5][C:6]=1[CH3:7].[CH3:16][C:17]1[CH:22]=[CH:21][C:20]([S:23](Cl)(=[O:25])=[O:24])=[CH:19][CH:18]=1>C(Cl)Cl.O>[Br:1][C:2]1[CH:3]=[C:4]([CH2:8][N:9]([CH2:10][CH:11]([O:14][CH3:15])[O:12][CH3:13])[S:23]([C:20]2[CH:21]=[CH:22][C:17]([CH3:16])=[CH:18][CH:19]=2)(=[O:25])=[O:24])[S:5][C:6]=1[CH3:7]

참가 물질

5

반응물 2

HCID 73974-Toluenesulfonyl chlorideHCID 58466475N-((4-bromo-5-methylthiophen-2-yl)methyl)-2,2-dimethoxyethanamine

생성물 1

HCID 58466455N-((4-bromo-5-methylthiophen-2-yl)methyl)-N-(2,2-dimethoxyethyl)-4-methylbenzenesulfonamide

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매2회

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온도
0 °C

실험 절차

N-((4-bromo-5-methylthiophen-2-yl)methyl)-2,2-dimethoxyethanamine (14.5 g, 49 mmol) was dissolved in DCM (100 ml) and TEA (14 ml, 99 mmol) was added. The reaction was cooled to 0° C. with an ice bath and 4-tosyl chloride (8.5 ml, 59 mmol) was added portionwise. The reaction was allowed to warm up to RT and stirred overnight. The reaction was then diluted with DCM and water. The layers were separated and the organic layer was washed (2×) with an aqueous saturated solution of sodium bicarbonate, then with water and then brine. The organic layer was then dried with sodium sulfate purified by column chromatography on silica gel using a gradient of 30 to 70% EtOAc in hexanes to give N-((4-bromo-5-methylthiophen-2-yl)methyl)-N-(2,2-dimethoxyethyl)-4-methylbenzenesulfonamide as light brown oil.

후처리

  1. temperatureto warm up to RT
  2. customThe layers were separated
  3. washthe organic layer was washed (2×) with an aqueous saturated solution of sodium bicarbonate
  4. dry with materialThe organic layer was then dried with sodium sulfate
  5. custompurified by column chromatography on silica gel using a gradient of 30 to 70% EtOAc in hexanes

출처 및 근거

ORD 기록
ord-11fea83281184496822ae7697fb2bddb
출처 데이터셋
uspto-grants-2011_08
특허 번호
US07989461B2

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