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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2186270Generated: October 29, 2026

Water → HCID 12094373, compound

https://huagongshe.com/reaction/2186270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4,6-Bis(1,1-dimethylethyl)-2,3-dihydro-2,2-dipentyl-5-benzofuranolHCID 9800472—
CatalystMethanesulfonic AcidHCID 6395—
SolventDichloromethaneHCID 6344—
ProductHCID 12094373HCID 1209437322%

Reaction Steps

To 1.03 g of 4,6-di-t-butyl-5-hydroxy-2,2-di-n-pentyl-2,3-dihydrobenzofuran synthesized according to JP No. 6-206842A/94 dissolved in 15 ml of dichloromethane was added 7 drops of methanesulfonic acid and the mixture was stirred at room temperature for a whole day and night. Then, the reaction mixture was combined with water and extracted with dichloromethane. The extracted layers were washed with saturated brine, dried over anhydrous magnesium sulfate and then concentrated. The concentrate was purified by silica gel column chromatography (in n-hexane containing 10% ethyl acetate) to give 0.19 g of 6-t-butyl-5-hydroxy-2,2-di-n-pentyl-2,3-dihydrobenzofuran as a colorless oil (yield 22%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06403639B1
Source datasetuspto-grants-2002_06
ORD IDord-f9455f9321ed478bb45ae5ed246eaaca
Source noteuspto-grants-2002_06