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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1823862Generated: October 31, 2026

4-(Trifluoromethyl)benzoyl chloride → 3-(3-Bromo-thiophen-2-yl)-5-(4-trifluoromethyl-phenyl)-[1,2,4]-oxadiazole

https://huagongshe.com/reaction/1823862

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(Trifluoromethyl)benzoyl chlorideHCID 67607—
Reactant3-Bromo-thiophene-2-amidoximeHCID 86587354—
Product3-(3-Bromo-thiophen-2-yl)-5-(4-trifluoromethyl-phenyl)-[1,2,4]-oxadiazoleHCID 22147917—

Reaction Steps

The title compound was prepared from 4-trifluoromethyl-benzoyl chloride (66 μL, 0.44 mmol) and 3-bromo-thiophene-2-amidoxime (98 mg, 0.44 mmol) similar to Example 16, and yielded 130 mg (78%) of white solid. 1H NMR (CDCl3): 8.34 (d, J=8.24 Hz, 2H), 7.83 (d, J=8.51 Hz, 2H), 7.52 (d, J=5.22 Hz, 1H), 7.19 (d, J=5.21 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07041685B2
Source datasetuspto-grants-2006_05
ORD IDord-ccc2321ad5ca4e1580fe88c2f10e6157
Source noteuspto-grants-2006_05