tert-Butyldimethylsilyl chloride → 2-[(Tert-butyldimethylsilyloxy)methyl]benzylalcohol

HRID 1854676Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1854676
[C:1]1([CH2:9][OH:10])[C:2]([CH2:7][OH:8])=[CH:3][CH:4]=[CH:5][CH:6]=1.C(N(CC)C(C)C)(C)C.[Si:20](Cl)([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21]>ClCCl.C(OCC)C>[Si:20]([O:8][CH2:7][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][C:1]=1[CH2:9][OH:10])([C:23]([CH3:26])([CH3:25])[CH3:24])([CH3:22])[CH3:21]

Komponenten

6

Edukt 3

HCID 28928tert-Butyldimethylsilyl chlorideHCID 691531,2-BenzenedimethanolHCID 81531Diisopropylethylamine

Produkt 1

HCID 108484452-[(Tert-butyldimethylsilyloxy)methyl]benzylalcoholAusbeute 57 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283Diethyl EtherLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 1,2-benzenedimethanol (500 mg, 3.62 mmol), N,N-diisopropylethylamine (0.76 mL, 4.4 mmol) in 3.6 mL of dichloromethane was added tert-butyldimethylsilyl chloride (573 mg, 3.80 mmol) at 0° C. The reaction mixture was allowed to warm to room temperature and was stirred for 1 day. The reaction mixture was diluted with diethyl ether, and the solution was washed with 1N HCl, saturated NaHCO3 aqueous solution, brine, and dried over MgSO4. After filtration, the filtrate was concentrated in vacuo, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate=95/5 to 85/15) to obtain 2-[(tert-butyldimethylsilyloxy)methyl]benzylalcohol as a colorless oil (520 mg, 57%).

Aufarbeitung

  1. washthe solution was washed with 1N HCl, saturated NaHCO3 aqueous solution, brine
  2. dry with materialdried over MgSO4
  3. filtrationAfter filtration
  4. concentrationthe filtrate was concentrated in vacuo
  5. customthe residue was purified by silica gel column chromatography (hexane/ethyl acetate=95/5 to 85/15)

Quellen und Nachweise

ORD-Eintrag
ord-bddca0c5791b43dc9aaa9ded136ef32a
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08962674B2

Notizen zur Reaktion

Wird geladen…