Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 5-Acetoxy-4,6-di-t-butyl-2-hydroxymethyl-2-methyl-2,3-dihydrobenzofuran | HCID 15485719 | — |
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 15485720 | HCID 15485720 | 73.2% |
Reaction Steps
A solution of 500 mg of 5-acetoxy-4,6-di-t-butyl-2-hydroxymethyl-2-methyl-2,3-dihydrobenzofuran in 7 ml of tetrahydrofuran was added dropwise to a suspension of 114 mg of lithium aluminum hydride in 3 ml of tetrahydrofuran under nitrogen atmosphere. The reaction mixture was heated under reflux for 2 hours. After allowing the mixture to attain room temperature, ethyl acetate was added dropwise, 10% hydrochloric acid was added thereto, and the mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate and concentrated. The residue was purified by silica gel column chromatography (20% ethyl acetate in n-hexane) to yield 320 mg (73%) of 4,6-di-t-butyl-5-hydroxy-2-hydroxymethyl-2-methyl-2,3-dihydrobenzofuran as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06440999B1 |
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| Source dataset | uspto-grants-2002_08 |
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| ORD ID | ord-ef59b276eaf148f0a875c0b772eb4ebd |
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| Source note | uspto-grants-2002_08 |
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