Sodium Sulfite → Disodium

HRID 1579841Notes

Reaction equation

HRID 1579841 reaction equation
[S:1]([O-:4])([O-:3])=[O:2].[Na+:5].[Na+:6].Cl[CH:8]([C:12]1[CH:21]=[CH:20][C:19]2[C:14](=[CH:15][CH:16]=[C:17]([O:22][CH3:23])[CH:18]=2)[CH:13]=1)[C:9]([OH:11])=[O:10].[Na]>C(O)C>[S:1]([CH:8]([C:12]1[CH:21]=[CH:20][C:19]2[C:14](=[CH:15][CH:16]=[C:17]([O:22][CH3:23])[CH:18]=2)[CH:13]=1)[C:9]([OH:11])=[O:10])([OH:4])(=[O:3])=[O:2].[Na:5][Na:6]

Participants

6

Reactant 3

HCID 24437Sodium SulfiteHCID 5360545SodiumHCID 21569134HCID 21569134, compound

Product 2

HCID 141233DisodiumHCID 21569135HCID 21569135, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 250 ml. of anhydrous ethanol and 0.12 moles of sodium sulfite is added 0.1 moles α-chloro-6-methoxy-2-naphthylacetic acid, sodium salt. The reaction mixture is stirred for 15 hours, filtered and the residue worked with ethanol. The filtrate is evaporated to dryness to obtain α-sulfo-6-methoxy-2-naphthylacetic acid, disodium salt.

Workup

  1. filtrationfiltered
  2. customThe filtrate is evaporated to dryness

Sources & evidence

ORD record
ord-ee4923fac1d84998ac57caab897dce86
Source dataset
uspto-grants-1976_01
Patent number
US03931269

Reaction notes

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