Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methane | HCID 297 | — |
| Reactant | HCID 2801527 | HCID 2801527 | — |
| Solvent | Sodium Bicarbonate | HCID 516892 | — |
| Product | HCID 21402615 | HCID 21402615 | — |
Reaction Steps
A suspension of 2.0 parts of 6-allyl-5-hydroxy-4-oxo-4H-1-benzopyran-2-carboxylic acid ethyl ester in aqueous sodium bicarbonate solution was stirred and heated at 100°C till solution was complete. The solution was treated with charcoal, filtered and acidified with dilute hydrochloric acid to give a yellow precipitate. This solid was crystallised from ethanol to give 0.84 parts of 6-allyl-5-hydroxy-4-oxo-4H-1-benzopyran-2-carboxylic acid as yellow needles, melting point 222°-224°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04055654 |
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| Source dataset | uspto-grants-1977_10 |
|---|
| ORD ID | ord-59ab3402b68f44c9866474aede8b9a4d |
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| Source note | uspto-grants-1977_10 |
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