Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2109481Generated: October 30, 2026

Fipronil → HCID 86605668, compound

https://huagongshe.com/reaction/2109481

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFipronilHCID 3352—
ReactantEthyl AcetateHCID 8857—
ReactantDicyclohexylcarbodiimideHCID 10868—
ReactantN-Benzyloxycarbonyl-beta-alanineHCID 75313—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
SolventEthylacetate heptaneHCID 21899848—
ProductHCID 86605668HCID 86605668—

Reaction Conditions

Temperature25 °C

Reaction Steps

To a solution of 5-amino-1-(2,6-dichloro-4-trifluoromethylphenyl)-3-cyano-4-trifluoromethylsulfinylpyrazole (1.0 g, 2.29 mmol) in dioxan, benzyloxycarbonyl-beta-alanine (0.56 g, 2.5 mmol), dicyclohexylcarbodiimide (0.61 g, 2.9 mmol) and 4-dimethylaminopyridine (0.06 g, 0.46 mmol) were added. The mixture was stirred at 25° C. for 24 hours. After extractive workup (ethyl acetate, water) and column chromatography with heptane-ethyl acetate (1:1) the title product was obtained (0.81 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07514561B2
Source datasetuspto-grants-2009_04
ORD IDord-6a3b3e836fe7493490557a2664b627c3
Source noteuspto-grants-2009_04