Imidazole → 1-(Tert-butyldiphenylsilyloxymethyl)-2,6-dichloro-3-nitrobenzene

HRID 2287548

Reaktionsgleichung

Reaktionsgleichung von HRID 2287548
[Cl:1][C:2]1[C:9]([N+:10]([O-:12])=[O:11])=[CH:8][CH:7]=[C:6]([Cl:13])[C:3]=1[CH2:4][OH:5].N1C=CN=C1.[Si:19](Cl)([C:32]([CH3:35])([CH3:34])[CH3:33])([C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>CN(C)C=O.O>[Si:19]([O:5][CH2:4][C:3]1[C:6]([Cl:13])=[CH:7][CH:8]=[C:9]([N+:10]([O-:12])=[O:11])[C:2]=1[Cl:1])([C:32]([CH3:35])([CH3:34])[CH3:33])([C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

Komponenten

6

Edukt 3

HCID 795ImidazoleHCID 94078tert-ButyldiphenylchlorosilaneHCID 2794914(2,6-Dichloro-3-nitrophenyl)methanol

Produkt 1

HCID 117981851-(Tert-butyldiphenylsilyloxymethyl)-2,6-dichloro-3-nitrobenzene

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 2,6-dichloro-3-nitrobenzyl alcohol (5.0 g) in N,N-dimethylformamide (25 ml) were added imidazole (1.69 g) and tert-butyldiphenylsilyl chloride (6.0 ml) at ambient temperature with stirring. After 8 hours, the mixture was diluted with water (25 ml) and was extracted with ethyl acetate twice. The organic layer was washed with water and brine, dried over magnesium sulfate. The solvent was removed in vacuo to give 1-(tert-butyldiphenylsilyloxy-methyl)-2,6-dichloro-3-nitrobenzene (11.5 g) as an oil.

Aufarbeitung

  1. extractionwas extracted with ethyl acetate twice
  2. washThe organic layer was washed with water and brine
  3. dry with materialdried over magnesium sulfate
  4. customThe solvent was removed in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-a83d7d8ae2f54acea19e4349244de39e
Quelldatensatz
uspto-grants-2000_07
Patentnummer
US06083961

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