Ethanol → 4-Amino-1,6-naphthalenedisulfonic acid disodium salt

HRID 1447574

Reaktionsgleichung

Reaktionsgleichung von HRID 1447574
[CH:1]1[C:10]([S:11]([OH:14])(=[O:13])=[O:12])=[CH:9][C:8]2[C:3](=[C:4]([S:16]([OH:19])(=[O:18])=[O:17])[CH:5]=[CH:6][C:7]=2[NH2:15])[CH:2]=1.[OH-].[Na+:21].C(O)C>O>[Na+:21].[Na+:21].[NH2:15][C:7]1[C:8]2[C:3](=[CH:2][CH:1]=[C:10]([S:11]([O-:14])(=[O:13])=[O:12])[CH:9]=2)[C:4]([S:16]([O-:19])(=[O:18])=[O:17])=[CH:5][CH:6]=1

Komponenten

5

Edukt 3

HCID 702EthanolHCID 14798Sodium HydroxideHCID 665671-Naphthylamine-4,7-disulfonic acid

Produkt 1

HCID 1013102144-Amino-1,6-naphthalenedisulfonic acid disodium salt

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A 50.0 g amount of (61.5%) 1-naphthylamine-4,7-disulfonic acid is dissolved in 150 ml of water and 5 N sodium hydroxide is added until basic pH (10-11). The solution is warmed and ethyl alcohol is added until a precipitate forms. The solid is collected by filtration, washed with 85% ethyl alcohol, ethyl alcohol and ether and is dried in vacuo at 110° C. to give 31.0 g of 4-amino-1,6-naphthalenedisulfonic acid disodium salt.

Aufarbeitung

  1. temperatureThe solution is warmed
  2. filtrationThe solid is collected by filtration
  3. washwashed with 85% ethyl alcohol, ethyl alcohol and ether
  4. customis dried in vacuo at 110° C.

Quellen und Nachweise

ORD-Eintrag
ord-c50367dbfcda4027a0847d6b4fc38ee2
Quelldatensatz
uspto-grants-1979_12
Patentnummer
US04177209

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