Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493921Generated: October 30, 2026

Sodium Carbonate → Epyrifenacil

https://huagongshe.com/reaction/493921

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 methyl [3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-pyridyloxy]acetate (compound a-6), 0.13 g of sodium carbonate, and 7.0 ml of ethanol was heated at reflux for 2 hours. After cooling to room temperature, the solvent was distilled out under reduced pressure, and the residue was subjected to silica gel chromatography to give 0.55 g of ethyl [3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-pyridyloxy]acetate (compound a-10).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538072B2
Source datasetuspto-grants-2009_05
ORD IDord-81b098ff8a6f4027b16cade220c244e5
Source noteuspto-grants-2009_05