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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2270425Generated: October 31, 2026

5-Ethyl-2-methylpyridine → 3-(4-cyano-5-ethylsulfonylamino-2-fluorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione

https://huagongshe.com/reaction/2270425

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethyl-2-methylpyridineHCID 7728—
Reactant3-(4-bromo-5-ethylsulfonylamino-2-fluorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)pyrimidinedioneHCID 10874406—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
Product3-(4-cyano-5-ethylsulfonylamino-2-fluorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedioneHCID 1109107794%

Reaction Conditions

Temperature80 °C

Reaction Steps

2.0 g (4.2 mmol) of 3-(4-bromo-5-ethylsulfonylamino-2-fluorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)pyrimidinedione, 0.3 g of zinc cyanide and 0.5 g of tetrakis(triphenylphosphine)palladium were added to 10 g of 5-ethyl-2-picoline and the mixture was stirred at 80° C. under an argon atmosphere for 3.5 hours. After the reaction was completed, 94% of the title compound was detected as the relative area value in liquid chromatography.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06331628B1
Source datasetuspto-grants-2001_12
ORD IDord-b1b3968d0611457197dc30ea996ab31b
Source noteuspto-grants-2001_12