Sodium triacetoxyborohydride → 1-benzyl-N-(4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-1H-1,2,3-triazol-5-amine

HRID 1412485노트

반응식

HRID 1412485 반응식
[CH2:1]([N:8]1[C:12]([NH2:13])=[CH:11][N:10]=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Si:14]([O:21][CH:22]1[CH2:27][CH2:26][C:25](=O)[CH2:24][CH2:23]1)([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:16])[CH3:15].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(O)(=O)C>[CH2:1]([N:8]1[C:12]([NH:13][CH:25]2[CH2:26][CH2:27][CH:22]([O:21][Si:14]([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:15])[CH3:16])[CH2:23][CH2:24]2)=[CH:11][N:10]=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

5

반응물 3

HCID 5049666Sodium triacetoxyborohydrideHCID 106094304-(tert-Butyldimethylsilyloxy)cyclohexanoneHCID 233617711-benzyl-1H-1,2,3-triazol-5-amine

생성물 1

HCID 670091201-benzyl-N-(4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-1H-1,2,3-triazol-5-amine수율 47.2%

시약·촉매·용매 1

HCID 176Acetic Acid용매

실험 절차

To a solution of 1-benzyl-1H-1,2,3-triazol-5-amine (10.61 g) and 4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexanone (15.07 g) in acetic acid (80 mL) was added sodium triacetoxyborohydride (19.37 g), and the mixture was stirred at room temperature for 18 hr. The solvent was evaporated under reduced pressure, the residue was diluted with saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate-isopropyl alcohol (3:1). The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=80/20→60/40 (volume ratio)] to give the title compound as a pale-yellow oil (11.12 g, 47%).

후처리

  1. customThe solvent was evaporated under reduced pressure
  2. additionthe residue was diluted with saturated aqueous sodium hydrogen carbonate solution
  3. extractionthe mixture was extracted with ethyl acetate-isopropyl alcohol (3:1)
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customthe residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=80/20→60/40 (volume ratio)]

출처 및 근거

ORD 기록
ord-c3dfb457ae8f4172aa20545daed31953
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08921379B2

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