Ethanol → Sodium 8-aminonaphthalene-1,3,5-trisulfonate

HRID 65901

Reaction equation

HRID 65901 reaction equation
[NH2:1][C:2]1[C:11]2[C:10]([S:12]([OH:15])(=[O:14])=[O:13])=[CH:9][C:8]([S:16]([OH:19])(=[O:18])=[O:17])=[CH:7][C:6]=2[C:5]([S:20]([OH:23])(=[O:22])=[O:21])=[CH:4][CH:3]=1.[OH-].[Na+:25].C(O)C>O>[Na+:25].[Na+:25].[Na+:25].[NH2:1][C:2]1[C:11]2[C:10]([S:12]([O-:15])(=[O:14])=[O:13])=[CH:9][C:8]([S:16]([O-:19])(=[O:17])=[O:18])=[CH:7][C:6]=2[C:5]([S:20]([O-:23])(=[O:22])=[O:21])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 702EthanolHCID 14798Sodium HydroxideHCID 873558-Aminonaphthalene-1,3,5-trisulfonic acid

Product 1

HCID 10343683Sodium 8-aminonaphthalene-1,3,5-trisulfonate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of 26.6 g of 8-amino-1,3,5-naphthalenetrisulfonic acid in 25 ml of water is added 12 ml of 5N sodium hydroxide. This solution is added to 125 ml of ethanol and stirred for 30 minutes. The resulting solid is recovered by filtration, washed with 50 ml of 80% ethanol followed by ethanol and ether and dried at 110° C. giving 8-amino-1,3,5-naphthalenetrisulfonic acid trisodium salt.

Workup

  1. filtrationThe resulting solid is recovered by filtration
  2. washwashed with 50 ml of 80% ethanol
  3. customdried at 110° C.

Sources & evidence

ORD record
ord-63dad3697ee74cb4b39486bd094061c4
Source dataset
uspto-grants-1978_12
Patent number
US04129591

Linked notes

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