Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 59504Generated: October 29, 2026

Trifluoroacetic acid → 4-Chloro-N-cyclopropyl-3-(5-oxo-1-(4-(trifluoromethyl)phenyl)-4,5-dihydro-1H-1,2,4-triazol-3-yl)benzenesulfonamide

https://huagongshe.com/reaction/59504

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 2-(4-(trifluoromethyl)phenyl)hydrazinecarboxylateHCID 90019516—
Reactant2-chloro-5-(N-cyclopropylsulfamoyl)benzoyl isocyanateHCID 90019525—
SolventDichloromethaneHCID 6344—
Product4-Chloro-N-cyclopropyl-3-(5-oxo-1-(4-(trifluoromethyl)phenyl)-4,5-dihydro-1H-1,2,4-triazol-3-yl)benzenesulfonamideHCID 13649243660.5%

Reaction Steps

The title compound was prepared by following the procedure as described for Example-83 by using tert-butyl 2-(4-(trifluoromethyl)phenyl)hydrazinecarboxylate (Intermediate-53, 0.050 g, 0.18 mmol), 2-chloro-5-(N-cyclopropylsulfamoyl)benzoyl isocyanate (step-4 of Intermediate-40, 0.108 g, 0.36 mmol), DCM (10 mL) and TFA (3 mL) to afford 0.050 g of desired product. 1H NMR (400 MHz, DMSO d6): δ 0.40-0.42 (m, 2H), 0.50-0.54 (m, 2H), 2.17-2.21 (m, 1H), 7.85 (d, J=8.8 Hz, 2H), 7.92-7.98 (m, 2H), 8.15-8.21 (m, 4H), 12.84 (s, 1H); MS (m/z): 457.15 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09439890B2
Source datasetuspto-grants-2016_09
ORD IDord-ca8df94dc72c4c65a1fd7a22c9e9b5c8
Source noteuspto-grants-2016_09