3-Hydroxybenzoic Acid → 2-(3-hydroxybenzoyl) oxymethyl-5-hydroxy-4H-pyran-4-one

HRID 259843

Reaktionsgleichung

Reaktionsgleichung von HRID 259843
[OH:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5]([OH:7])=[O:6].[OH-].[Na+].[CH:13]1[C:18](=[O:19])[C:17]([OH:20])=[CH:16][O:15][C:14]=1[CH2:21]Cl>>[OH:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5]([O:7][CH2:21][C:14]1[O:15][CH:16]=[C:17]([OH:20])[C:18](=[O:19])[CH:13]=1)=[O:6]

Komponenten

4

Edukt 3

HCID 74203-Hydroxybenzoic AcidHCID 14798Sodium HydroxideHCID 82051Chlorokojic acid

Produkt 1

HCID 224040082-(3-hydroxybenzoyl) oxymethyl-5-hydroxy-4H-pyran-4-oneAusbeute 55,1 %

Versuchsvorschrift

By following the procedure of Example 1 by employing 1.39 g(10.1 mmole) of 3-hydroxybenzoic acid, 0.4 g (10.1 mmole) of sodium hydroxide and 1.46 g(9.1 mmole) of chlorokojic acid, there was obtained 1.31 g(55.1%) of 2-(3-hydroxybenzoyl) oxymethyl-5-hydroxy-4H-pyran-4-one as a solid.

Quellen und Nachweise

ORD-Eintrag
ord-0b641a365b804204b9948cccc264687e
Quelldatensatz
uspto-grants-1996_06
Patentnummer
US05523421

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