HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Carbonate → Epyrifenacil
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 3-[2-Chloro-4-fluoro-5-(3-methyl-2,6-dioxo-4-trifluoromethyl-1,2,3,6-tetrahydropyrimidin-1-yl)phenoxy]-2-(methoxycarbonylmethoxy)pyridine | HCID 12056739 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Epyrifenacil | HCID 12097345 | 89.2% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06537948B1 |
| Source dataset | uspto-grants-2003_03 |
| ORD ID | ord-aebc68ee8b014af0b7f96e2f743ba717 |
| Source note | uspto-grants-2003_03 |