Hydrochloric Acid → HCID 67851899, compound

HRID 1534840Notes

Reaction equation

HRID 1534840 reaction equation
[C:1]([C:4]1[CH:5]=[CH:6][C:7]([Cl:14])=[C:8]([S:10](Cl)(=[O:12])=[O:11])[CH:9]=1)([OH:3])=[O:2].S([O-])([O-])=O.[Na+:19].[Na+].Cl>O>[C:1]([C:4]1[CH:5]=[CH:6][C:7]([Cl:14])=[C:8]([S:10]([O-:12])=[O:11])[CH:9]=1)([OH:3])=[O:2].[Na+:19].[Na+:19].[C:1]([C:4]1[CH:5]=[CH:6][C:7]([Cl:14])=[C:8]([S:10]([O-:12])=[O:11])[CH:9]=1)([OH:3])=[O:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 24437Sodium SulfiteHCID 756134-Chloro-3-(chlorosulphonyl)benzoic acid

Product 1

HCID 67851899HCID 67851899, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

is obtained from 186 g of 5-carboxy-2-chlorobenzenesulfinic acid, prepared by reduction of 261 g of 5-carboxy-2-chlorobenzenesulfonyl chloride with 157 g of sodium sulfite in 700 ml of water at 70° C. at pH 9-10 and subsequent acidification using HCl, by neutralization with 67.6 g of caustic soda in 2 liters of water, removal the latter by distillation and crystallization of the residue with acetone.

Workup

  1. customby neutralization with 67.6 g of caustic soda in 2 liters of water, removal the
  2. distillationlatter by distillation and crystallization of the residue with acetone

Sources & evidence

ORD record
ord-0777ab28788e475cbedcbe8febd45405
Source dataset
uspto-grants-1992_02
Patent number
US05091394

Reaction notes

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