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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270848Generated: October 25, 2026

(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid → 2-(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-1-(3-methyl-4-m-tolyl-piperazin-1-yl)-ethanone

https://huagongshe.com/reaction/270848

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acidHCID 1876853—
Reactant2-Methyl-1-(m-tolyl)piperazineHCID 2723804—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Product2-(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-1-(3-methyl-4-m-tolyl-piperazin-1-yl)-ethanoneHCID 21071072—

Reaction Steps

Title compound was prepared following the HATU mediated coupling protocol P, wherein 1-(3-Methylphenyl)-2-methyl-piperazine and (4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid were used as the coupling components, to give the product as a solid: 1H NMR (DMSO-d6, 400 MHz) 7.68 (br, 1H), 7.17 (br, 1H), 6.71 (br, 2H), 5.41 (m, 2H), 4.08 (m, 4H), 3.70 (m, 2H), 3.50 (br m, 2H), 2.30 (s, 3H), 2.18 (s, 3H), 1.01 (m, 3H) ppm; MS (ES) M+H expected=415.1, found=415.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449576B1
Source datasetuspto-grants-2008_11
ORD IDord-1e273bfa3e5446919af1bae0a2eec200
Source noteuspto-grants-2008_11