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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 372922Generated: October 26, 2026

Diethylamine → 2-Chloro-5-{[(oxan-2-yl)oxy]methyl}pyridine

https://huagongshe.com/reaction/372922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylamineHCID 8021—
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant1,4-DioxaneHCID 31275—
Reactant(6-Chloropyridin-3-yl)methanolHCID 177161—
Catalystp-Toluenesulfonic acid monohydrateHCID 521998—
SolventDiethyl EtherHCID 3283—
Product2-Chloro-5-{[(oxan-2-yl)oxy]methyl}pyridineHCID 22127378124.3%

Reaction Conditions

Temperature55 °C

Reaction Steps

A mixture of 44.3 g of 6-chloro-3-pyridinecarbinol, 300 ml of dioxan and 104.3 g of 3,4-dihydro-2H-pyran was treated with 3 g of p-toluenesulphonic acid monohydrate and stirred at 55° C. for 2 hours. The reaction mixture was treated with 10 ml of diethylamine and, after cooling, taken up in diethyl ether. Repeated washing with water, drying over sodium sulphate and concentration in a vacuum yielded 87.3 g of crude 2-chloro-5-[(tetrahydro-2-pyranyloxy)methyl]pyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05160661
Source datasetuspto-grants-1992_11
ORD IDord-52ad7a0acabb4eda914758428bef5be2
Source noteuspto-grants-1992_11