Chlorosuccinimide → Tert-butyl(2-(5-chlorothiophen-2-yl)ethoxy)dimethylsilane

HRID 471303Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 471303
[Cl:1]N1C(=O)CCC1=O.[C:9]([Si:13]([CH3:23])([CH3:22])[O:14][CH2:15][CH2:16][C:17]1[S:18][CH:19]=[CH:20][CH:21]=1)([CH3:12])([CH3:11])[CH3:10]>C(Cl)(Cl)Cl.C(Cl)Cl>[C:9]([Si:13]([O:14][CH2:15][CH2:16][C:17]1[S:18][C:19]([Cl:1])=[CH:20][CH:21]=1)([CH3:23])[CH3:22])([CH3:10])([CH3:12])[CH3:11]

Komponenten

5

Edukt 2

HCID 31398ChlorosuccinimideHCID 22503634Tert-butyldimethyl(2-(thiophen-2-YL)ethoxy)silane

Produkt 1

HCID 57989349Tert-butyl(2-(5-chlorothiophen-2-yl)ethoxy)dimethylsilane

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6212ChloroformLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

N-chlorosuccinimide (0.83 g) was added portionwise to a solution of tert-butyldimethyl(2-(thiophen-2-yl)ethoxy)silane (1.5 g) (example 4 step a) in chloroform (50 mL) and heated to reflux for 3 days. The yellow solution was diluted with DCM (100 mL) and washed with saturated sodium bicarbonate solution (2×100 mL), brine (100 mL), dried over sodium sulphate, filtered and evaporated in vacuo. The residue was purified by silica gel chromatography eluting with iso-hexane. The fractions containing product were combined and evaporated in vacuo to give the subtitled compound as a clear oil. Yield 1 g.

Aufarbeitung

  1. temperatureheated
  2. temperatureto reflux for 3 days
  3. washwashed with saturated sodium bicarbonate solution (2×100 mL), brine (100 mL)
  4. dry with materialdried over sodium sulphate
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customThe residue was purified by silica gel chromatography
  8. washeluting with iso-hexane
  9. additionThe fractions containing product
  10. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-e09ca47967504f108d8eab723560ca3f
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08629271B2

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