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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1198039Generated: October 29, 2026

3,4-dihydro-2H-pyran → HCID 14405876, compound

https://huagongshe.com/reaction/1198039

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-dihydro-2H-pyranHCID 8080—
Reactant12-Hydroxydodecanoic AcidHCID 79034—
ReactantSodium BicarbonateHCID 516892—
Catalystp-Toluenesulfonic acidHCID 6101—
SolventTetrahydrofuranHCID 8028—
ProductHCID 14405876HCID 1440587694%

Reaction Steps

To a solution of 12-hydroxydodecanoic acid (10.0 g, 0.046 mol) in 150 mL THF, p-toluenesulfonic acid (0.087 g, 0.01 eq) was added followed by 3,4-dihydro-2H-pyran (5.95 g, 0.070 mol). After stirring this homogeneous reaction mixture for 16 hours at room temperature under a nitrogen atmosphere, NaHCO3 saturated solution was added to the mixture. The mixture was then extracted with methylene chloride, dried (MgSO4), and concentrated in vacuo (30° C.) to yield 13.0 g (0.043 mol, 94%) of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05278326
Source datasetuspto-grants-1994_01
ORD IDord-045cb18ec97b4c76a055ecf7b25a2ee6
Source noteuspto-grants-1994_01