Hydrochloric Acid → 6-chloronaphthalene-2-sulfonic Acid

HRID 346662

Reaktionsgleichung

Reaktionsgleichung von HRID 346662
N([O-])=O.[Na+].N[C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[CH:12]=[C:11]([S:16]([OH:19])(=[O:18])=[O:17])[CH:10]=[CH:9]2.[ClH:20]>O>[Cl:20][C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[CH:12]=[C:11]([S:16]([OH:19])(=[O:18])=[O:17])[CH:10]=[CH:9]2

Komponenten

5

Edukt 3

HCID 313Hydrochloric Acid2×HCID 71166-Amino-2-naphthalenesulfonic acidHCID 23668193Sodium Nitrite

Produkt 1

HCID 100146476-chloronaphthalene-2-sulfonic Acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

A solution of sodium nitrite (2.7 g) in water (5 ml) was added during 2 hours to a stirred mixture of 6-amino-2-naphthalenesulphonic acid (8.8 g), dilute aqueous hydrochloric acid (2.8% weight/volume, 20 ml) and water (15 ml) which had been cooled to 0° C. The mixture was stirred at 0° C. for 30 minutes and then poured onto a stirred suspension of cuprous chloride (3.96 g) in dilute aqueous hydrochloric acid (2.8%, 20 ml). The mixture was evaporated to give 6-chloro-2-naphthalenesulphonic acid which was used without further purification.

Aufarbeitung

  1. customThe mixture was evaporated

Quellen und Nachweise

ORD-Eintrag
ord-e4cf38b0601c4f13b412fef2d98c2e4d
Quelldatensatz
uspto-grants-2007_02
Patentnummer
US07173025B1

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