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Methyl iodide → 1-(tert-butyl-dimethyl-silanyl)-6-(tert-butyl-dimethyl-silanyloxy)-3-methyl-1H-indole

HRID 1767935
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1767935
[C:1]([Li])(C)(C)C.CCCCC.Br[C:12]1[C:20]2[C:15](=[CH:16][C:17]([O:21][Si:22]([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23])=[CH:18][CH:19]=2)[N:14]([Si:29]([C:32]([CH3:35])([CH3:34])[CH3:33])([CH3:31])[CH3:30])[CH:13]=1.CI>C1COCC1>[C:32]([Si:29]([CH3:31])([CH3:30])[N:14]1[C:15]2[C:20](=[CH:19][CH:18]=[C:17]([O:21][Si:22]([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23])[CH:16]=2)[C:12]([CH3:1])=[CH:13]1)([CH3:35])([CH3:34])[CH3:33]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 6328Methyl iodideHCID 8003PentaneHCID 236144903-bromo-1-(tert-butyl-dimethyl-silanyl)-6-(tert-butyl-dimethyl-silanyloxy)-1H-indoleHCID 178418306HCID 178418306, Verbindung

Produkt 1

HCID 236144811-(tert-butyl-dimethyl-silanyl)-6-(tert-butyl-dimethyl-silanyloxy)-3-methyl-1H-indole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
-78 °C

Versuchsvorschrift

A 1.5 M solution of tert-butyllithium in pentane (3.3 ml, 4.99 mmol) was added dropwise to a solution of 3-bromo-1-(tert-butyl-dimethyl-silanyl)-6-(tert-butyl-dimethyl-silanyloxy)-1H-indole (1 g, 2.27 mmol) in THF (6 ml) at −78° C. under an argon atmosphere. After 15 min methyl iodide (0.28 ml, 4.54 mmol) was added at −78° C. The reaction mixture was stirred for another 30 min at −78° C. and then for 2 h at RT. After quenching with saturated aqueous NaHCO3 solution the reaction mixture was partitioned between ether and water. The ether phase was dried over sodium sulfate and concentrated in vacuo to give 863 mg (2.3 mmol, quant.) 1-(tert-butyl-dimethyl-silanyl)-6-(tert-butyl-dimethyl-silanyloxy)-3-methyl-1H-indole as red crystals.

Aufarbeitung

  1. waitfor 2 h at RT
  2. customAfter quenching with saturated aqueous NaHCO3 solution the reaction mixture
  3. customwas partitioned between ether and water
  4. dry with materialThe ether phase was dried over sodium sulfate
  5. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-d792a87734534d2095acc9b9ff17ab93
Quelldatensatz
uspto-grants-2007_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07235572B2

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