Sulfuric Acid → Chlorobenzene sulfochloride

HRID 978970Notes

Reaction equation

HRID 978970 reaction equation
[Cl:1][S:2]([OH:5])(=[O:4])=[O:3].S(=O)(=O)(O)O.[Cl:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1>>[S:2]([Cl:1])([OH:5])(=[O:4])=[O:3].[Cl:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1

Participants

4

Reactant 3

HCID 1118Sulfuric AcidHCID 7964ChlorobenzeneHCID 24638Chlorosulfonic acid

Product 1

HCID 21952870Chlorobenzene sulfochloride

Procedure

The operation was carried out in the same manner as in Example 1 except that the reaction product of chlorosulfonic acid and chlorobenzene was dropwise added to 788 g of 60% sulfuric acid. After the liquid phase separation, about 1100 g of sulfuric acid having a concentration of 73% was obtained from the lower layer. From the upper layer, 286 g of chlorobenzene sulfochloride having a purity of 92% was obtained. The yield based on the feed chlorobenzene was 83%.

Workup

  1. customAfter the liquid phase separation, about 1100 g of sulfuric acid having a concentration of 73%
  2. customwas obtained from the lower layer

Sources & evidence

ORD record
ord-b9566328e7864c5498880e81322d9e08
Source dataset
uspto-grants-1987_05
Patent number
US04666637

Reaction notes

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