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4-Phenylbutanoyl Chloride → 4-[1-(4-Phenylbutanoyloxy)tridecyl]2-trimethylsilylfuran

HRID 1681500
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1681500
C([Li])(C)(C)C.[OH:6][CH:7]([C:20]1[CH:21]=[C:22]([Si:25]([CH3:28])([CH3:27])[CH3:26])[O:23][CH:24]=1)[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19].[C:29]1([CH2:35][CH2:36][CH2:37][C:38](Cl)=[O:39])[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1>CCCCC.O1CCCC1>[C:29]1([CH2:35][CH2:36][CH2:37][C:38]([O:6][CH:7]([C:20]2[CH:21]=[C:22]([Si:25]([CH3:28])([CH3:27])[CH3:26])[O:23][CH:24]=2)[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19])=[O:39])[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1
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Komponenten

6

Edukt 3

HCID 117898654-Phenylbutanoyl ChlorideHCID 156632683-(1-Hydroxytridecyl)-5-trimethylsilylfuranHCID 178418306HCID 178418306, Verbindung

Produkt 1

HCID 150370604-[1-(4-Phenylbutanoyloxy)tridecyl]2-trimethylsilylfuran

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8003PentaneLösungsmittel
HCID 8028
Tetrahydrofuran
Lösungsmittel

Versuchsvorschrift

tert-Butyl lithium (a 1.7M solution in pentane; 0.47 ml, 0.79 mmol) was added dropwise to a solution of 4-(1-hydroxytridecyl)-2-trimethylsilylfuran (256.4 mg, 0.76 mmol), prepared as in Example 38, in tetrahydrofuran (5 ml) at -78 degrees under argon. After 10 minutes, a solution of 4-phenylbutyryl chloride (145 mg, 0.79 mmol) was added. Stirring was continued at room temperature for 2 days and the mixture was quenched with water. Extraction and evaporation of the dried (magnesium sulphate) extracts gave an oil, which was purified by preparative thin-layer chromatography (20×20 cm, 1000 micron silica plate; developed with 10% ethyl ether/hexane). The title ester was obtained as a light yellow oil.

Aufarbeitung

  1. waitwas continued at room temperature for 2 days
  2. customthe mixture was quenched with water
  3. extractionExtraction and evaporation of the
  4. dry with materialdried (magnesium sulphate)
  5. customextracts gave an oil, which
  6. customwas purified by preparative thin-layer chromatography (20×20 cm, 1000 micron silica plate; developed with 10% ethyl ether/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-d4067fe9859d42568da32855b067fe55
Quelldatensatz
uspto-grants-1992_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05171863

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