Triethylamine → HCID 21844643, 화합물

HRID 1738624노트

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HRID 1738624 반응식
[CH:1]([CH2:3][CH2:4][CH2:5][CH:6]1[O:11][CH:10]([OH:12])[CH2:9][CH2:8][CH2:7]1)=[O:2].CCN(CC)CC.[Si:20](Cl)([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21]>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH:1]([CH2:3][CH2:4][CH2:5][CH:6]1[O:11][CH:10]([O:12][Si:20]([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21])[CH2:9][CH2:8][CH2:7]1)=[O:2]

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 21844652HCID 21844652, 화합물

생성물 1

HCID 21844643HCID 21844643, 화합물수율 90%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매2회

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온도
0 °C

실험 절차

In a 25 mL round bottomed flask was placed a solution of 6-(3-formylpropyl)-2-hydroxytetrahydropyran (153 mg, 0.89 mmol), DMAP (5 mg), and Et3N (0.4 mL) in CH2Cl2 (10 mL). The solution was cooled to 0° C., and tert-butyldimethylsilyl chloride (205 mg, 1.34 mmol) in CH2Cl2 (3 mL) was added dropwise. The reaction mixture was allowed to warm to room temperature overnight, and then the solvent was removed under reduced pressure. Ether was added and the organic layer was washed with saturated NH4Cl twice followed by brine, dried over anhydrous magnesium sulfate, and then concentrated in vacuo. The residue was submitted to column chromatography on silica gel to afford 6-(3-formylpropyl)-2-(tert-butyldimethylsiloxy)tetrahydropyran as a clear yellow oil (206 mg, 90% yield): 1H NMR (CDCl3) δ 0.09 (s, 3H), 0.10 (s, 3H), 0.89 (s, 9H), 1.19-1.73 (m, 10H), 2.43 (m, 2H), 3.34 (t, 1H, J=5.7 Hz), 4.63 (d, 1H, J=9 Hz), 9.74 (s, 1H); 13C NMR (CDCl3) δ -4.0, 18.14, 18.41, 22.21, 25.81, 30.61, 33.83, 35.25, 43.70, 75.70, 97.26, 202.63. HRMS [CI (CH4)] calcd for C15H29O3Si: 285.1886 (M-H,)+. Found: 285.1890 (Δ-1.4 ppm).

후처리

  1. customIn a 25 mL round bottomed flask was placed
  2. temperatureto warm to room temperature overnight
  3. customthe solvent was removed under reduced pressure
  4. additionEther was added
  5. washthe organic layer was washed with saturated NH4Cl
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-243e160641584dbda79ae6354b51a544
출처 데이터셋
uspto-grants-1999_10
특허 번호
US05962744

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