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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1255203Generated: November 1, 2026

Ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutanoate → Ethyl 1-[6-(2-methoxy-5-methylphenyl)-4-nitropyridin-2-yl]-5-(trifluoromethyl)-1H-pyrazole 4-carboxylate

https://huagongshe.com/reaction/1255203

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutanoateHCID 4685753—
Reactant2-Hydrazino-6-(2-methoxy-5-methylphenyl)-4-nitropyridineHCID 67159312—
ProductEthyl 1-[6-(2-methoxy-5-methylphenyl)-4-nitropyridin-2-yl]-5-(trifluoromethyl)-1H-pyrazole 4-carboxylateHCID 67159086—

Reaction Steps

Reaction of the title compound from Example 19 Step C with ethyl 2-(ethoxymethylene)-4,4,4-trifluoro-3-oxobutyrate, according to chemistry described in Example 1 Step A, provided the title compound: LCMS m/z 451.6 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08455638B2
Source datasetuspto-grants-2013_06
ORD IDord-23e51d315fa7460d862f3fd6be67ef43
Source noteuspto-grants-2013_06