Ethyl 2-((dimethylamino)methyl)thiazole-4-carboxylate → (2-((Dimethylamino)methyl)thiazol-4-yl)methanol

HRID 430528

반응식

HRID 430528 반응식
[H-].[Al+3].[Li+].[H-].[H-].[H-].[CH3:7][N:8]([CH2:10][C:11]1[S:12][CH:13]=[C:14]([C:16](OCC)=[O:17])[N:15]=1)[CH3:9]>>[CH3:9][N:8]([CH2:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][OH:17])[N:15]=1)[CH3:7]

참가 물질

3

반응물 2

HCID 2039211Ethyl 2-((dimethylamino)methyl)thiazole-4-carboxylateHCID 21226445Aluminium lithium hydride

생성물 1

HCID 1838020(2-((Dimethylamino)methyl)thiazol-4-yl)methanol수율 62%

실험 절차

To a mixture of lithium aluminum hydride (4.5 g, 119 mmol) in ice cold tetrahydrofuran (100 mL) was added ethyl 2-dimethylaminomethylthiazole-4-carboxylate (8.5 g, 39.7 mmol in 40 mL of tetrahydrofuran) dropwise over 40 min maintaining an internal temperature of 5-10C. The mixture was stirred at this temperature range for 90 min. The reaction was carefully quenched with saturated aqueous ammonium chloride (30 mL). The resulting gray slurry was stirred 15 min and filtered through celite. The pad was well washed with ethyl acetate. The filtrate was washed with brine and dried over sodium sulfate. Concentration of this organic solution gave 4.2 g (62%) of 2-dimethylaminomethyl-4-hydroxymethylthiazole as an amber oil. The material was used without further purification.

후처리

  1. temperaturemaintaining an internal temperature of 5-10C
  2. customThe reaction was carefully quenched with saturated aqueous ammonium chloride (30 mL)
  3. stirringThe resulting gray slurry was stirred 15 min
  4. filtrationfiltered through celite
  5. washThe pad was well washed with ethyl acetate
  6. washThe filtrate was washed with brine
  7. dry with materialdried over sodium sulfate

출처 및 근거

ORD 기록
ord-cd45bda530354fe0b9cad5dd4736f7dd
출처 데이터셋
uspto-grants-2001_11
특허 번호
US06323208B1

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