HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → Tetrahydro-2,5-dioxo-3-furansulfonic Acid, Sodium Salt
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Sulfosuccinic acid monosodium salt | HCID 21220 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | Tetrahydro-2,5-dioxo-3-furansulfonic Acid, Sodium Salt | HCID 4187165 | — |
Reaction Steps
Tetrahydro-2,5-dioxo-3-furansulfonic acid sodium salt was prepared by stirring 1.71 moles of sulfosuccinic acid with 1.87 moles of sodium hydroxide at 50° C. until a milky suspension formed and then adding 1 kg acetic anhydride over 6 hours. After cooling, 1 L of ethyl acetate was added and the mixture was filtered. The filter cake was washed with 500 mL ethyl acetate. On drying 344.32 g of white crystalline product was obtained. 13C-NMR (d6-DMSO) 171.3, 167.2, 60.4, 34.0 ppm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06407263B1 |
| Source dataset | uspto-grants-2002_06 |
| ORD ID | ord-c4c622b0f03447c9a2a4cd1b31b065f9 |
| Source note | uspto-grants-2002_06 |