Triethylamine → (4-(5-Bromo-2-chlorobenzyl)phenoxy)(tert-butyl)dimethylsilane

HRID 19824

Reaktionsgleichung

Reaktionsgleichung von HRID 19824
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([Cl:16])=[C:6]([CH:15]=1)[CH2:7][C:8]1[CH:13]=[CH:12][C:11]([OH:14])=[CH:10][CH:9]=1.[Si:17](Cl)([C:20]([CH3:23])([CH3:22])[CH3:21])([CH3:19])[CH3:18].C(N(CC)CC)C>ClCCl.CN(C)C1C=CN=CC=1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([Cl:16])=[C:6]([CH:15]=1)[CH2:7][C:8]1[CH:13]=[CH:12][C:11]([O:14][Si:17]([C:20]([CH3:23])([CH3:22])[CH3:21])([CH3:19])[CH3:18])=[CH:10][CH:9]=1

Komponenten

6

Edukt 3

HCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 574237514-((5-Bromo-2-chlorophenyl)methyl)phenol

Produkt 1

HCID 59747702(4-(5-Bromo-2-chlorobenzyl)phenoxy)(tert-butyl)dimethylsilane

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6344DichloromethaneLösungsmittel3×

Versuchsvorschrift

A solution of 13.9 g 4-(5-bromo-2-chloro-benzyl)-phenol in 140 mL dichloromethane is cooled in an ice bath. Then 7.54 g tert-butyldimethylsilyl chloride in 20 mL dichloromethane are added followed by 9.8 mL triethylamine and 0.5 g 4-dimethylaminopyridine. The resultant solution is stirred for 16 h at ambient temperature and then diluted with 100 mL dichloromethane. The organic phase is washed twice with aqueous 1 M hydrochloric acid and once with aqueous sodium hydrogen carbonate solution and then dried over sodium sulfate. After the solvent is removed, the residue is filtered through silica gel (cyclohexane/ethyl acetate 100:1).

Aufarbeitung

  1. washThe organic phase is washed twice with aqueous 1 M hydrochloric acid and once with aqueous sodium hydrogen carbonate solution
  2. dry with materialdried over sodium sulfate
  3. customAfter the solvent is removed
  4. filtrationthe residue is filtered through silica gel (cyclohexane/ethyl acetate 100:1)

Quellen und Nachweise

ORD-Eintrag
ord-95408472bc0c4879b5176bfb0699e855
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07745414B2

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