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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1862297Generated: October 30, 2026

Sodium Carbonate → Epyrifenacil

https://huagongshe.com/reaction/1862297

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant3-[2-Chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-trifluoromethyl-1,2,3,6-tetrahydropyrimidin-1-yl)phenoxy]-2-(methoxycarbonylmethoxy)pyridineHCID 12056739—
SolventEthanolHCID 702—
ProductEpyrifenacilHCID 1209734589.2%

Reaction Steps

A mixture of 0.60 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine [present compound 7-7], 0.13 g of sodium carbonate and 7.0 ml of ethanol was heated under reflux for 2 hours. It was cooled to room temperature, then, the solvent was distilled off under reduced pressure, and the resulted residue was subjected to silica gel chromatography to obtain 0.55 g of 3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(ethoxycarbonyl)methoxypyridine [present compound 7-8].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06537948B1
Source datasetuspto-grants-2003_03
ORD IDord-aebc68ee8b014af0b7f96e2f743ba717
Source noteuspto-grants-2003_03