Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrogen Peroxide | HCID 784 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Maleic Acid | HCID 444266 | — |
| Catalyst | Sodium Tungstate Dihydrate | HCID 150191 | — |
| Solvent | Water | HCID 962 | — |
| Product | cis-Epoxysuccinate | HCID 2734802 | — |
Reaction Steps
A solution was prepared by dissolving 67 grams of sodium hydroxide in 400 ml of water. To this solution were added 130 g of maleic acid while maintaining the solution at a temperature below 98° C. An aqueous solution of hydrogen peroxide (30%) was then added, followed by the addition of a solution containing 2.0 g of sodium tungstate dihydrate in 8.0 ml of water. The solution was heated in a 90° C. oil bath for 30 minutes and then cooled to ≤60° C. A solution containing 44 g of aqueous NaOH (50% by weight) was then added to bring the pH to 7.0. The product was analyzed by NMR, giving 14.7% by weight of cis-epoxysuccinic acid and 3.9% by weight of D,L-tartaric acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05344590 |
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| Source dataset | uspto-grants-1994_09 |
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| ORD ID | ord-74c2f7d5e0604e748ae81c019376cb48 |
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| Source note | uspto-grants-1994_09 |
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