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Imidazole → 2-Phenoxyethyl 3-tert-butyldimethylsiloxybenzoate

HRID 2220031
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2220031
CN(C)C=O.[OH:6][C:7]1[CH:8]=[C:9]([CH:22]=[CH:23][CH:24]=1)[C:10]([O:12][CH2:13][CH2:14][O:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)=[O:11].[C:25]([Si:29](Cl)([CH3:31])[CH3:30])([CH3:28])([CH3:27])[CH3:26].N1C=CN=C1>O>[O:6]([C:7]1[CH:8]=[C:9]([CH:22]=[CH:23][CH:24]=1)[C:10]([O:12][CH2:13][CH2:14][O:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)=[O:11])[Si:29]([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:31])[CH3:30]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 795ImidazoleHCID 6228DimethylformamideHCID 28928tert-Butyldimethylsilyl chlorideHCID 135053562-Phenoxyethyl 3-hydroxybenzoate

Produkt 1

HCID 233915782-Phenoxyethyl 3-tert-butyldimethylsiloxybenzoate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962
Water
Lösungsmittel

Versuchsvorschrift

Into a 250 mL round bottom flask was added 30 mL of dry dimethyl formamide. Five parts of hydroxy ester (53) and 3.5 parts of tert-butyldimethyl silyl chloride were added to the reaction flask with stirring. Three parts of Imidazole was added in portions and stirring was continued for 10 hours. The reaction mixture was diluted with 80 mL of water and the product was extracted with ethyl acetate. The organic layer was washed with water and dried on anhydrous sodium sulfate. The solvent was evaporated under reduced pressure to give an oil, yield 6.80 parts. This material was pure enough for next step of the reaction. The reaction proceeded as follows:

Aufarbeitung

  1. stirringstirring
  2. extractionthe product was extracted with ethyl acetate
  3. washThe organic layer was washed with water
  4. dry with materialdried on anhydrous sodium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customto give an oil
  7. customyield 6.80 parts
  8. customThis material was pure enough for next step of the reaction

Quellen und Nachweise

ORD-Eintrag
ord-e7c11a857e37441b8a19f1fce30ea0b7
Quelldatensatz
uspto-grants-2008_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07416898B2

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