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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270809Generated: October 30, 2026

(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid → 1-[4-(4-Bromophenyl)-1-piperazinyl]-2-[4-chloro-5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone

https://huagongshe.com/reaction/270809

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(4-Chloro-5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acidHCID 1876853—
Reactant1-(4-Bromophenyl)piperazineHCID 2735629—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Product1-[4-(4-Bromophenyl)-1-piperazinyl]-2-[4-chloro-5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanoneHCID 21070982—

Reaction Steps

Title compound was prepared following the HATU mediated coupling protocol P, wherein 1-(4-Bromophenyl)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) 7.36 (d, 2H), 6.92 (d, 2H), 5.37 (s, 2H), 3.60 (m, 4H), 3.24 (m, 2H), 3.14 (m, 2H), 2.18 (s, 3H) ppm; MS (ES) M+H expect=465.0, found=465.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449576B1
Source datasetuspto-grants-2008_11
ORD IDord-9abf8a1d9a0d4e5cb436adcacc756885
Source noteuspto-grants-2008_11