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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923470Generated: November 2, 2026

Ammonium Chloride → HCID 118308753, compound

https://huagongshe.com/reaction/923470

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant2,2-Dimethyl-1,3-dioxan-5-oneHCID 2733141—
Reactant2-Bromo-4-methylpyridineHCID 2734087—
ReactantHCID 178418244HCID 178418244—
SolventTetrahydrofuranHCID 8028—
ProductHCID 118308753HCID 11830875340.8%

Reaction Steps

To a solution of 2.01 g of 2-bromo-4-methylpyridine in 10 ml of THF were added 4.3 ml of a 2.69 M n-butyllithium/hexane solution at −78° C., followed by stirring for 30 minutes. To the reaction mixture was added dropwise a solution of 1 g of 2,2-dimethyl-1,3-dioxan-5-one in 5 ml of THF, followed by stirring at −78° C. for 2 hours. To the reaction mixture was added a saturated aqueous ammonium chloride solution, followed by extraction with ethyl acetate. The organic layer was washed with water and a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate, and the solvent was then evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography to obtain 700 mg of 2,2-dimethyl-5-(4-methylpyridin-2-yl)-1,3-dioxan-5-ol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278968B2
Source datasetuspto-grants-2016_03
ORD IDord-ef174b9763d147aa98b6b88e275a5e78
Source noteuspto-grants-2016_03