Triethylsilane → 4-[1-(tert-butyldimethylsilanyloxy)-2-(1-trityl-1H-imidazol-4-ylmethoxy)ethyl]benzonitrile

HRID 1095306노트

반응식

HRID 1095306 반응식
FC(F)(F)S(O[Si](C)(C)C)(=O)=O.[Si:13]([O:20][CH:21]([C:50]1[CH:55]=[CH:54][C:53]([C:56]#[N:57])=[CH:52][CH:51]=1)[C:22]([O:24][CH2:25][C:26]1[N:27]=[CH:28][N:29]([C:31]([C:44]2[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=2)([C:38]2[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=2)[C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH:30]=1)=O)([C:16]([CH3:19])([CH3:18])[CH3:17])([CH3:15])[CH3:14].C([SiH](CC)CC)C>ClCCl.[Ti](Cl)(Cl)(Cl)Cl>[Si:13]([O:20][CH:21]([C:50]1[CH:55]=[CH:54][C:53]([C:56]#[N:57])=[CH:52][CH:51]=1)[CH2:22][O:24][CH2:25][C:26]1[N:27]=[CH:28][N:29]([C:31]([C:44]2[CH:45]=[CH:46][CH:47]=[CH:48][CH:49]=2)([C:38]2[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=2)[C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH:30]=1)([C:16]([CH3:19])([CH3:17])[CH3:18])([CH3:15])[CH3:14]

참가 물질

6

반응물 3

HCID 12052TriethylsilaneHCID 65367Trimethylsilyl triflateHCID 866329551-trityl-1H-imidazol-4-ylmethyl (tert-butyldimethylsilyloxy)(4-cyanophenyl)acetate

생성물 1

HCID 667816954-[1-(tert-butyldimethylsilanyloxy)-2-(1-trityl-1H-imidazol-4-ylmethoxy)ethyl]benzonitrile

시약·촉매·용매 2

HCID 24193Titanium Tetrachloride촉매HCID 6344Dichloromethane용매3회

실험 절차

A solution of 1.27 mmol of titanium tetrachloride in 1.5 ml of dichloromethane is added to a solution of 2.61 mmol of trimethylsilyl trifluoromethanesulphonate in 1 ml of dichloromethane at 0° C. The mixture is stirred at room temperature for 4 hours and then cooled to 0° C. A solution of 0.83 mmol of 1-trityl-1H-imidazol-4-ylmethyl (tert-butyldimethylsilyloxy)(4-cyanophenyl)acetate and 4.17 mmol of triethylsilane in 2 ml of dichloromethane is added, and the reaction mixture is stirred at room temperature for 20 hours. The reaction mixture is poured into ice-water and extracted with ethyl acetate (2×). The combined organic phases are washed with water and brine, dried with sodium sulphate and evaporated. The title compound is identified from the residue on the basis of the Rf by flash chromatography (SiO2 60 F).

후처리

  1. temperaturecooled to 0° C
  2. stirringthe reaction mixture is stirred at room temperature for 20 hours
  3. extractionextracted with ethyl acetate (2×)
  4. washThe combined organic phases are washed with water and brine
  5. dry with materialdried with sodium sulphate
  6. customevaporated

출처 및 근거

ORD 기록
ord-a2bd8ce0cfed49ae89c52f9b933aeaba
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08138176B2

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