4-Sulfophthalic acid → 3-Hydroxybenzoic Acid

HRID 223423

Reaktionsgleichung

Reaktionsgleichung von HRID 223423
S([C:5]1[CH:13]=[CH:12][CH:11]=[C:7]([C:8]([OH:10])=[O:9])[C:6]=1C(O)=O)(O)(=O)=O.S(C1C=C(C(O)=O)C(=CC=1)C(O)=O)(O)(=O)=[O:18]>>[OH:18][C:5]1[CH:6]=[C:7]([CH:11]=[CH:12][CH:13]=1)[C:8]([OH:10])=[O:9]

Komponenten

3

Edukt 2

HCID 69624-Sulfophthalic acidHCID 1059701,2-Benzenedicarboxylic acid, 3-sulfo-2×

Produkt 1

HCID 74203-Hydroxybenzoic Acid

Versuchsvorschrift

Within the framework of the process according to the invention, sulphophthalic acid are 3-sulphophthalic acid and 4-sulphophthalic acid. They can be reacted according to the invention either on their own or as a mixture, to give 3-hydroxybenzoic acid. Preferably, a mixture of the two isomeric sulphophthalic acids such as is obtained from the sulphonation of phthalic anhydride with oleum is used for the process according to the invention. The mixture obtained from the said sulphonation is a mixture of 3-sulphophthalic acid and 4-sulphophthalic acid in a ratio of 1:4 to 1:6.

Aufarbeitung

  1. customThey can be reacted

Quellen und Nachweise

ORD-Eintrag
ord-a2148eee11134888a3acb19133740863
Quelldatensatz
uspto-grants-1982_10
Patentnummer
US04354038

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