4-Bromophenol → Silane, (4-bromophenoxy)(1,1-dimethylethyl)diphenyl-

HRID 1029450

Reaktionsgleichung

Reaktionsgleichung von HRID 1029450
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.[Si:9](Cl)([C:22]([CH3:25])([CH3:24])[CH3:23])([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.CCN(CC)CC>C(Cl)Cl.CN(C)C1C=CN=CC=1>[O:8]([C:5]1[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][CH:4]=1)[Si:9]([C:22]([CH3:25])([CH3:24])[CH3:23])([C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1

Komponenten

6

Edukt 3

HCID 78084-BromophenolHCID 8471TriethylamineHCID 94078tert-Butyldiphenylchlorosilane

Produkt 1

HCID 11292808Silane, (4-bromophenoxy)(1,1-dimethylethyl)diphenyl-

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 4-bromophenol (16.4 g, 0.1 mole) in CH2Cl2 (300 mL) was added t-butyldiphenylsilyl chloride (29 g, 0.1 mole), Et3N (20 g, 0.2 mole) and 4-dimethylaminopyridine (DMAP) (1 g). The solution was stirred at RT for 2 days, quenched with H2O (1 L) and extracted with ether (2 L). The ether extracts were dried and evaporated. Flash chromatography of the residue using 5% ethyl acetate in hexane afforded the title compound which was used as such for the next step.

Aufarbeitung

  1. customquenched with H2O (1 L)
  2. extractionextracted with ether (2 L)
  3. dry with materialThe ether extracts were dried
  4. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-a0a3602cbbce4042ab71be1cd02e2f2a
Quelldatensatz
uspto-grants-1992_04
Patentnummer
US05102881

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