Hydrochloric Acid → HCID 11126976, compound

HRID 1756870Notes

Reaction equation

HRID 1756870 reaction equation
[OH-].[Na+].[O:3]([CH2:11][C:12](=[CH2:17])[C:13]([O:15]C)=[O:14])[CH2:4][C:5](=[CH2:10])[C:6]([O:8]C)=[O:7].C1(C=CC(O)=CC=1)O.Cl>O>[O:3]([CH2:4][C:5](=[CH2:10])[C:6]([OH:8])=[O:7])[CH2:11][C:12](=[CH2:17])[C:13]([OH:15])=[O:14]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 785HydroquinoneHCID 14798Sodium HydroxideHCID 109218542-Propenoic acid, 2,2'-[oxybis(methylene)]bis-, dimethyl ester

Product 1

HCID 11126976HCID 11126976, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a solution of 15 g of sodium hydroxide in 135 g of water was added a mixture of 30 g (0.14 mol) of dimethyl 2,2'-[oxybis(methylene)]bis-2-propenoate and 60 mg of hydroquinone, which was followed by stirring at room temperature for 19 h. The reaction mixture was then brought to pH 1 with concentrated hydrochloric acid. The precipitated acid was filtered off, dissolved in 160 g of distilled water at 90° C., admixed with 10 g of active charcoal and then filtered hot. Cooling down to room temperature yielded 24.5 g (94%) of very pure 2,2'-[oxybis(methylene)]bis-2-propenoic acid having a melting point of 177° C.

Workup

  1. filtrationThe precipitated acid was filtered off
  2. dissolutiondissolved in 160 g of distilled water at 90° C.
  3. filtrationfiltered hot
  4. temperatureCooling down to room temperature

Sources & evidence

ORD record
ord-1705cb98d5f44c8ba433b540f3ec4c8e
Source dataset
uspto-grants-1995_08
Patent number
US05442109

Reaction notes

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