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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 450511Generated: October 29, 2026

3,4-dihydro-2H-pyran → 2-[2-(4-Nitrophenoxy)ethoxy]oxane

https://huagongshe.com/reaction/450511

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant2-(4-Nitrophenoxy)ethanolHCID 85381—
SolventTolueneHCID 1140—
Product2-[2-(4-Nitrophenoxy)ethoxy]oxaneHCID 10890836—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of 2-[(4-Nitrophenyl)oxy]ethanol (1 g, 5.4 mmol), in toluene (50 mL) was added 3,4-dihydro-2H-pyran (1.5 mL) and APTS (catalytic amount). The reaction was stirred at 60° C. for 3 hours. The dark solution was then concentrated and purified by flash chromatography using DCM/cyclohexane 30/70 as eluent. The title compound was obtained as an oil (1.33 g, 92%). LC: Rt: 3.12 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08486977B2
Source datasetuspto-grants-2013_07
ORD IDord-80ca1934c4ae4791a8d77fa2017e4e93
Source noteuspto-grants-2013_07