Chlorosulfonic acid → HCID 135819039, compound

HRID 267467Notes

Reaction equation

HRID 267467 reaction equation
[Na].[Cl:2][S:3]([OH:6])(=O)=[O:4].[OH:7][C:8]1[CH:17]=[CH:16][C:15]([N:18]=[N:19][C:20]2[CH:25]=[CH:24][C:23]([N+:26]([O-:28])=[O:27])=[CH:22][C:21]=2[S:29]([CH3:32])(=[O:31])=[O:30])=[C:14]2[C:9]=1[CH:10]=[CH:11][C:12](S([O-])(=O)=O)=[CH:13]2.[Na+]>>[OH:7][C:8]1[CH:17]=[CH:16][C:15]([N:18]=[N:19][C:20]2[CH:25]=[CH:24][C:23]([N+:26]([O-:28])=[O:27])=[CH:22][C:21]=2[S:29]([CH3:32])(=[O:30])=[O:31])=[C:14]2[C:9]=1[CH:10]=[CH:11][C:12]([S:3]([Cl:2])(=[O:6])=[O:4])=[CH:13]2

Participants

4

Reactant 3

HCID 24638Chlorosulfonic acid2×HCID 5360545SodiumHCID 135773241HCID 135773241, compound

Product 1

HCID 135819039HCID 135819039, compound

Procedure

The 5-hydroxy-8-(2-methylsulfonyl-4-nitrophenylazo)-2-naphthalenesulfonyl chloride was prepared from the sodium salt of the acid with chlorosulfonic acid; 3.55 g. (0.0075 mol) of sodium 5-hydroxy-8-(2-methylsulfonyl-4-nitrophenylazo)-2-napthalenesulfonate in 35 ml. of chlorosulfonic acid was heated at 60°C. for one hour. The solution was cooled and poured onto ice. The solid was collected on a filter funnel and dried in a vaccum desiccator to yield 2.8 g. (80 percent) of the product which contained a small amount of starting material.

Workup

  1. temperatureThe solution was cooled
  2. additionpoured onto ice
  3. customThe solid was collected on a filter funnel
  4. customdried in a vaccum desiccator
  5. customto yield 2.8 g

Sources & evidence

ORD record
ord-9054c9850a91495e9c137c8c113f3567
Source dataset
uspto-grants-1976_03
Patent number
US03942987

Reaction notes

Loading…