HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → Ethyl 7-methoxy-9-oxoxanthene-2-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 2-Carboxy-7-methoxyxanthen-9-one | HCID 193160 | — |
| Solvent | Sulfuric Acid | HCID 1118 | — |
| Product | Ethyl 7-methoxy-9-oxoxanthene-2-carboxylate | HCID 21455094 | 84% |
Reaction Steps
A mixture of 7-methoxy-9-oxoxanthene-2-carboxylic acid in ethanol (100ml) and concentrated sulfuric acid (10 ml) was refluxed under nitrogen for 24 hours. The reaction mixture was concentrated and cooled. The product, which precipitated, was filtered off and recrystallized from ethanol to give white crystals (2.53g, 84%), mp. 170°-172° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04007205 |
| Source dataset | uspto-grants-1977_02 |
| ORD ID | ord-675d50573a774e7fad237b71e5dc3df1 |
| Source note | uspto-grants-1977_02 |