Methylhydroquinone → Sodium Chloride

HRID 324910

Reaction equation

HRID 324910 reaction equation
C(C1C=CC=CC=1C=C)=C.[Li+:11].[Cl-:12].CC1C=C(O)C=CC=1O.[CH:22]([S:30]([O-:33])(=[O:32])=[O:31])=[CH:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.[Na+:34]>CN1CCCC1=O>[CH:22]([S:30]([O-:33])(=[O:31])=[O:32])=[CH:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.[Li+:11].[Na+:34].[Cl-:12]

Participants

7

Reactant 4

HCID 7253MethylhydroquinoneHCID 666661,2-DiethenylbenzeneHCID 433294Lithium Chloride2×HCID 53627496Sodium styrenesulfonate2×

Product 2

HCID 5234Sodium ChlorideHCID 86583601Lithium styrene sulfonate

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

In a 500 ml flat bottomed flask, 50 ml (52.2 g) N-methylpyrrolidone and 50 ml divinyl benzene (80%) are combined at a temperature of 70° C. with stirring. Ten grams of LiCl and 80 mg methylhydroquinone are added to the solution. Subsequently, 50 g sodium styrene sulfonate (81%) are added to the solution forming a suspension, and the reaction allowed to proceed at 70°-80° C. for one hour. The LiCl reacts with the suspended sodium styrene sulfonate to form lithium styrene sulfonate and insoluble NaCl. The reaction mixture is allowed to cool to room temperature, and insoluble materials (NaCl and unreacted insoluble sodium styrene sulfonate) are removed by filtration. A brown, clear filtrate (121 g) is obtained for use in membrane synthesis.

Workup

  1. customforming a suspension

Sources & evidence

ORD record
ord-9c6928402c924beb8284bec56852586b
Source dataset
uspto-grants-2001_04
Patent number
US06221248B1

Linked notes

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