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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858595Generated: October 26, 2026

Triethylsilane → 5-Bromo-3,3-dimethyl-2,3-dihydro-1-benzofuran

https://huagongshe.com/reaction/858595

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylsilaneHCID 12052—
Reactant5-Bromo-2,3-dihydro-3,3-dimethyl-2-hydroxybenzofuranHCID 20536224—
ReactantTrifluoroacetic acid methylene chlorideHCID 21863450—
SolventTolueneHCID 1140—
Product5-Bromo-3,3-dimethyl-2,3-dihydro-1-benzofuranHCID 5323595—

Reaction Steps

A solution of 5-Bromo-3,3-dimethyl-2,3-dihydro-benzofuran-2-ol (813 mg, 3.36 mmol), Triethylsilane (805 □L, 5.04 mmol), and 30% TFA/CH2Cl2 (15 mL), were stirred at room temperature for 1 h. The solution was then diluted with Toluene (15 mL), stripped of all solvents, and chromatographed on silica eluted with a gradient 5–25% Ethyl acetate/Hexanes. Yield 549 mg, 72%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148226B2
Source datasetuspto-grants-2006_12
ORD IDord-016d0070ac094b71acdf0328e0163ead
Source noteuspto-grants-2006_12