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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2305436Generated: November 2, 2026

Hydrochloric Acid → HCID 15485720, compound

https://huagongshe.com/reaction/2305436

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
Reactant5-Acetoxy-4,6-di-t-butyl-2-hydroxymethyl-2-methyl-2,3-dihydrobenzofuranHCID 15485719—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductHCID 15485720HCID 1548572073.2%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06440999B1
Source datasetuspto-grants-2002_08
ORD IDord-ef59b276eaf148f0a875c0b772eb4ebd
Source noteuspto-grants-2002_08