Ammonia → 5-Acetylaminonaphthalene-2-sulfonic acid

HRID 1165362

Reaktionsgleichung

Reaktionsgleichung von HRID 1165362
[OH:1][C:2]1[CH:11]=CC2C(=CC=CC=2)C=1.S(=O)(=O)(O)O.OC1C=CC2C(=CC=CC=2)C=1S(O)(=O)=O.[NH3:32].S([O-])(O)=O.[NH4+].N[C:39]1[CH:48]=[CH:47][C:46]2[C:41](=[CH:42][CH:43]=[C:44]([S:49]([OH:52])(=[O:51])=[O:50])[CH:45]=2)[CH:40]=1>>[NH:32]([C:40]1[C:41]2[C:46](=[CH:45][C:44]([S:49]([OH:52])(=[O:51])=[O:50])=[CH:43][CH:42]=2)[CH:47]=[CH:48][CH:39]=1)[C:2]([CH3:11])=[O:1]

Komponenten

7

Edukt 6

HCID 222AmmoniaHCID 1118Sulfuric AcidHCID 71166-Amino-2-naphthalenesulfonic acid2×HCID 86632-NaphtholHCID 112781-Naphthalenesulfonic acid, 2-hydroxy-HCID 10441651Ammonium Bisulfite

Produkt 1

HCID 2355515-Acetylaminonaphthalene-2-sulfonic acid

Versuchsvorschrift

In a single-vessel process for preparing 2-acetaminophthalene-6-sulfonic acid of high purity by sulfonating 2-hydroxynaphthalene with concentrated sulfuric acid, converting the 2-hydroxynaphthalenesulfonic acid formed thereby with ammonia in the presence of ammonium hydrogensulfite into 2-aminonaphthalene-6-sulfonic acid (Bucherer reaction and N-acetylating the said 2-aminonaphthalene-6-sulfonic acid to give 2 acetaminonaphthalene-6-sulfonic acid, the improvement which comprises:

Aufarbeitung

  1. customformed

Quellen und Nachweise

ORD-Eintrag
ord-416bc47a863843e3870dabc05524ace4
Quelldatensatz
uspto-grants-1990_03
Patentnummer
US04908478

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