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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2056520Generated: October 27, 2026

4,4,4-Trifluoro-3-(trifluoromethyl)crotonic acid → 6-[4-(4,4,4-TRIFLUORO-3-TRIFLUOROMETHYLBUT-2-ENOYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (2-CYCLOPROPYLETHYL)AMIDE

https://huagongshe.com/reaction/2056520

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,4,4-Trifluoro-3-(trifluoromethyl)crotonic acidHCID 15669—
ReactantN-(2-cyclopropylethyl)-6-(1-piperazinyl)-3-pyridazinecarboxamideHCID 66849327—
Product6-[4-(4,4,4-TRIFLUORO-3-TRIFLUOROMETHYLBUT-2-ENOYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (2-CYCLOPROPYLETHYL)AMIDEHCID 11317237—

Reaction Steps

Following the procedure of Example 9, making variations only as required to use 4,4,4-trifluoro-3-trifluoromethylbut-2-enoic acid in place of 2,5-dichlorobenzoic acid to react with 6-piperazin-1-yl-pyridazine-3-carboxylic acid (2-cyclopropylethyl)amide, the title compound was obtained as a white powder (45.4% yield). 1H NMR (CDCl3) δ 8.07, 7.97, 7.10, 7.01, 3.87-3.74, 3.58-3.50, 1.54-1.47, 0.78-0.68, 0.48-0.42, 0.10-0.05. 3C NMR(CDCl3)δ 162.8, 161.1, 159.8, 145.8, 135.2, 135.1, 127.3, 124.5, 112.7, 45.5, 44.4, 44.3, 40.9, 39.7, 34.5, 8.6, 4.2. MS (ES+) m/z 466 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07335658B2
Source datasetuspto-grants-2008_02
ORD IDord-f3cf2e65746b4d20b8422bc0751779fc
Source noteuspto-grants-2008_02