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 |
|---|
| Patent number | US03952104 |
|---|
| Source dataset | uspto-grants-1976_04 |
|---|
| ORD ID | ord-7fd0a07e23ef4a51945c937dbfcfbbd1 |
|---|
| Source note | uspto-grants-1976_04 |
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