HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetate → 4-t-Butyl-5-hydroxy-2-methylbenzofuran
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 5-Benzyloxy-4-t-butyl-2-formylbenzofuran | HCID 23442879 | — |
| Reactant | HCID 178418361 | HCID 178418361 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 4-t-Butyl-5-hydroxy-2-methylbenzofuran | HCID 23442866 | 17% |
Reaction Steps
A solution of 1.0 g of 5-benzyloxy-4-t-butyl-2-formylbenzofuran in a mixed solvent of 50 ml of ethyl acetate and 2 ml of acetic acid was vigorously stirred with 1.0 g of 10% palladium on carbon for 20 hours in a hydrogen atmosphere. After the palladium on carbon was filtered out, the filtrate was concentrated and the concentrate was purified by silica gel column chromatography (in n-hexane containing 20% ethyl acetate) to give 0.11 g of 4-t-butyl-5-hydroxy-2-methylbenzofuran as a white crystal (yield 17%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06686389B2 |
| Source dataset | uspto-grants-2004_02 |
| ORD ID | ord-098e2f106f42436baf4e25e204d44084 |
| Source note | uspto-grants-2004_02 |