4-Hydroxybenzaldehyde → Benzaldehyde, 4-(2-hydroxyethoxy)-

HRID 1269478Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1269478
[OH:1][CH2:2][CH2:3][O:4][C:5]1[CH:12]=[CH:11][C:8]([CH:9]=C)=[CH:7][CH:6]=1.[OH:13]C1C=CC(C=O)=CC=1>>[OH:1][CH2:2][CH2:3][O:4][C:5]1[CH:12]=[CH:11][C:8]([CH:9]=[O:13])=[CH:7][CH:6]=1

Komponenten

3

Edukt 2

HCID 1264-HydroxybenzaldehydeHCID 149378112-(4-Vinylphenoxy)ethanol

Produkt 1

HCID 89178Benzaldehyde, 4-(2-hydroxyethoxy)-

Versuchsvorschrift

Ueno et al. (U.S. Pat. No. 6,340,759) also describe a two-step procedure for preparing p-(2-hydroxyethoxy)styrene starting with p-hydroxybenzaldehyde. In the first step, p-(2-hydroxyethoxy)benzaldehyde is formed by reacting p-hydroxybenzaldehyde, sodium hydride, and (2-bromoethoxy)-tert-butyldimethylsilane. In the second step, p-(2-hydroxyethoxy)styrene is formed by reacting the isolated p-(2-hydroxyethoxy)benzaldehyde with (ethyl)triphenylphosphonium bromide in the presence of sodium hydride.

Quellen und Nachweise

ORD-Eintrag
ord-750f2828d0254e1cb296515bd77a1568
Quelldatensatz
uspto-grants-2007_04
Patentnummer
US07199272B2

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