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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 21560Generated: October 30, 2026

p-Toluenesulfonic acid → 2-[(3-Bromophenyl)methoxy]oxane

https://huagongshe.com/reaction/21560

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant3-Bromobenzyl alcoholHCID 85141—
SolventDichloromethaneHCID 6344—
Product2-[(3-Bromophenyl)methoxy]oxaneHCID 15282064—

Reaction Steps

A solution of 3-bromobenzyl alcohol (84.9 g; Aldrich), 3,4-dihydro-2H-pyran (44 g) and anhydrous p-toluene sulfonic acid (1 g) in CH2Cl2 (800 mL) was stirred at 5° C. for 1 hr. then at r.t. overnight. The mixture was concentrated and the residue chromatographed (5% EtOAc/hexane) to afford the title compound as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05424320
Source datasetuspto-grants-1995_06
ORD IDord-2db09be680da427fb5198d935bceca3f
Source noteuspto-grants-1995_06