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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 865451Generated: October 23, 2026

3,4-dihydro-2H-pyran → 2-[(3-Bromophenyl)methoxy]oxane

https://huagongshe.com/en/reaction/865451

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-dihydro-2H-pyranHCID 8080—
ReactantTriphenylphosphonium bromideHCID 80811—
Reactant3-Bromobenzyl alcoholHCID 85141—
SolventDichloromethaneHCID 6344—
Product2-[(3-Bromophenyl)methoxy]oxaneHCID 15282064—

Reaction Steps

The alcohol of Step 1 (41.23 mmol), dihydropyran (12.5 mL, 137 mmol) and triphenylphosphine hydrobromide (725 mg, 2.11 mmol) were mixed together in 200 mL of CH2Cl2 and stirred for 2 days. The solvent was then evaporated and the title product was purified by flash chromatography on silica using EtOAc:toluene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05565473
Source datasetuspto-grants-1996_10
ORD IDord-951d072502734c138b4dcecf8cf6d3d9
Source noteuspto-grants-1996_10