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Sodium Bicarbonate → tert-Butyl(4-{4-[2,4-bis(methoxymethoxy)phenyl]-3-cyclohexen-1-yl}phenoxy) dimethylsilane

HRID 2307127
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2307127
[Si:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([CH:15]2[CH2:20][CH2:19][C:18]([C:22]3[CH:27]=[CH:26][C:25]([O:28][CH2:29][O:30][CH3:31])=[CH:24][C:23]=3[O:32][CH2:33][O:34][CH3:35])(O)[CH2:17][CH2:16]2)=[CH:11][CH:10]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.C(=O)(O)[O-].[Na+]>C1(C)C=CC=CC=1>[C:4]([Si:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([CH:15]2[CH2:20][CH2:19][C:18]([C:22]3[CH:27]=[CH:26][C:25]([O:28][CH2:29][O:30][CH3:31])=[CH:24][C:23]=3[O:32][CH2:33][O:34][CH3:35])=[CH:17][CH2:16]2)=[CH:13][CH:14]=1)([CH3:3])[CH3:2])([CH3:7])([CH3:6])[CH3:5]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 516892Sodium BicarbonateHCID 521998p-Toluenesulfonic acid monohydrateHCID 538169184-(4-{[tert-Butyl(dimethyl)silyl]oxy}phenyl)-1-[2,4-bis(methoxymethoxy)phenyl]cyclohexanol

Produkt 1

HCID 22337758tert-Butyl(4-{4-[2,4-bis(methoxymethoxy)phenyl]-3-cyclohexen-1-yl}phenoxy) dimethylsilane

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140
Toluene
Lösungsmittel

Versuchsvorschrift

A round bottomed flask equipped with magnetic stirrer was charged with 4-(4-{[tert-butyl(dimethyl)silyl]oxy}phenyl)-1-[2,4-bis(methoxymethoxy) phenyl]cyclohexanol (125 mg, 0.25 mmol), toluene (10 ml) and p-toluene sulfonic acid monohydrate (3 crystals). The reaction mixture was heated to reflux temperature for 30 min, then cooled to room temperature before adding saturated aqueous sodium bicarbonate (5 ml). The layers were separated and the aqueous layer was extracted with ethyl acetate (3×10 ml). The combined organic layers were washed with brine (10 ml), dried over magnesium sulfate, filtered and concentrated in vacuo. The title compound was isolated without further purification as an oil (118 mg, 98%) and a mixture of diastereoisomers. δH(CDCl3) 0.19 (6H, s), 0.98 (9H, s), 1.84 (1H, m), 2.00 (1H, m), 2.27 (1H, m), 2.44 (2H, m), 2.56 (1H, m), 3.48 (3H, s), 3.49 (3H, s), 5.15 (2×2H, s), 5.79 (1H, m), 6.67 (1H, dd), 6.77 (2H, d), 6.78 (1H, d), 7.07 (2H, d), 7.11 (1H, d).

Aufarbeitung

  1. customA round bottomed flask equipped with magnetic stirrer
  2. temperatureThe reaction mixture was heated
  3. temperatureto reflux temperature for 30 min
  4. customThe layers were separated
  5. extractionthe aqueous layer was extracted with ethyl acetate (3×10 ml)
  6. washThe combined organic layers were washed with brine (10 ml)
  7. dry with materialdried over magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-112c46ef63d04c179be660c3a925f1c4
Quelldatensatz
uspto-grants-2004_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06828460B2

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