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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1892543Generated: November 1, 2026

Fipronil → Fipronil sulfide

https://huagongshe.com/reaction/1892543

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFipronilHCID 3352—
Reactant4-Amino-3,5-dichlorobenzotrifluorideHCID 141094—
ProductFipronil sulfideHCID 9953940—

Reaction Steps

European Patent publication No. 295117 describes the preparation of 5-amino-1-(2,6-dichloro-4-trifluoromethylphenyl)-3-cyano-4-trifluoromethylsulphinyl pyrazole starting from 2,6-Dichloro-4-trifluoromethylaniline to give an intermediate 5-amino-1-(2,6-dichloro-4-trifluoromethylphenyl)-3-cyano-4-trifluoromethylthiopyrazole which is oxidized with meta-chloroperbenzoic acid in chloroform to give desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507693B2
Source datasetuspto-grants-2013_08
ORD IDord-cb682b6fc7044de8987863b017c9b8f0
Source noteuspto-grants-2013_08