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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 915489Generated: October 30, 2026

Ethyl Acetate → 3-[2-methyl-5-(4-trifluoromethyl-phenyl)-2H-pyrazol-3-yl]-propionic acid ethyl ester

https://huagongshe.com/reaction/915489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantLithium diisopropylamideHCID 2724682—
Reactant5-iodomethyl-1-methyl-3-(4-trifluoromethyl-phenyl)-1H-pyrazoleHCID 69282812—
Solvent2(1H)-Pyrimidinone, tetrahydro-1,3-dimethyl-HCID 81646—
Product3-[2-methyl-5-(4-trifluoromethyl-phenyl)-2H-pyrazol-3-yl]-propionic acid ethyl esterHCID 69282485—

Reaction Steps

In analogy to the procedure described in example 20 b], 5-iodomethyl-1-methyl-3-(4-trifluoromethyl-phenyl)-1H-pyrazole was reacted with ethyl acetate in the presence of lithium diisopropylamide and DMPU to obtain 3-[2-methyl-5-(4-trifluoromethyl-phenyl)-2H-pyrazol-3-yl]-propionic acid ethyl ester as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07265149B2
Source datasetuspto-grants-2007_09
ORD IDord-5ecf6487ed1d4debb57867afacb91247
Source noteuspto-grants-2007_09