Sodium Hydroxide → HCID 13179811, compound

HRID 2290707Notes

Reaction equation

HRID 2290707 reaction equation
S([O-])([O-])=O.[Na+].[Na+].[CH3:7][O:8][C:9]1[CH:14]=[C:13]([O:15][CH3:16])[CH:12]=[CH:11][C:10]=1[S:17](Cl)(=[O:19])=[O:18].[OH-].[Na+]>>[CH3:7][O:8][C:9]1[CH:14]=[C:13]([O:15][CH3:16])[CH:12]=[CH:11][C:10]=1[S:17]([OH:19])=[O:18]

Participants

4

Reactant 3

HCID 14798Sodium HydroxideHCID 24437Sodium SulfiteHCID 27346262,4-Dimethoxybenzenesulfonyl chloride

Product 1

HCID 13179811HCID 13179811, compound

Procedure

To an aqueous solution containing 129 g (0.974 mole) of sodium sulfite were added in small amounts and with stirring 115 g (0.487 mole) of 2,4-dimethoxy benzenesulfonyl chloride. During this operation, the pH was kept alkaline by the addition of caustic soda. After standing for 3 h, the reaction medium was filtered. The filtrate was acidified with 2N sulfuric acid until the precipitation of the sulfinic acid.

Workup

  1. additionwere added in small amounts
  2. filtrationthe reaction medium was filtered
  3. customThe filtrate was acidified with 2N sulfuric acid until the precipitation of the sulfinic acid

Sources & evidence

ORD record
ord-669346b8c6424cd6983e45f4a3c49d33
Source dataset
uspto-grants-1986_10
Patent number
US04618459

Reaction notes

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