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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1454292Generated: October 26, 2026

4-Acetylpyridine → 4,4-Dimethoxy-1-pyridin-4-yl-butane-1,3-dione

https://huagongshe.com/reaction/1454292

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AcetylpyridineHCID 14282—
ReactantAcetic acid, 2,2-dimethoxy-, methyl esterHCID 66647—
ReactantLithium HexamethyldisilazideHCID 2733832—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product4,4-Dimethoxy-1-pyridin-4-yl-butane-1,3-dioneHCID 17874544—

Reaction Conditions

Temperature-40 °C

Reaction Steps

A solution of 4-acetylpyridine (12 g) in dry tetrahydrofuran (500 ml), under nitrogen and at −60° C., was treated with a solution of lithium bis(trimethylsilyl)amide in hexane (200 ml, 1M). The mixture was allowed to warm to −40° C. then treated with methyl dimethoxyacetate (12 ml). After standing at room temperature for 16 hours the reaction mixture was evaporated and the residue was triturated with diethyl ether to give the title compound as a yellow solid (22 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07479501B2
Source datasetuspto-grants-2009_01
ORD IDord-56ca476c8e0c44778a79d35ca513aeec
Source noteuspto-grants-2009_01