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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1950860Generated: October 31, 2026

Oxalyl chloride → 5-[4-(3,5-Dimethylisoxazol-4-yl)-4-methylpheyl]-3-[2-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole

https://huagongshe.com/reaction/1950860

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantDiisopropylethylamineHCID 81531—
ReactantN'-hydroxy-2-(trifluoromethoxy)benzenecarboximidamideHCID 2794708—
Reactant4-(3,5-Dimethylisoxazol-4-YL)-3-methylbenzoic acidHCID 53225019—
Product5-[4-(3,5-Dimethylisoxazol-4-yl)-4-methylpheyl]-3-[2-(trifluoromethoxy)phenyl]-1,2,4-oxadiazoleHCID 89453064—

Reaction Steps

Oxalyl chloride (132 μL; 1.56 mmol; 3 eq.), Intermediate 30 (120 mg; 0.52 mmol; 1 eq.), Intermediate 2 (114 mg; 0.52 mmol, 1 eq.) and DIEA (268 μl; 1.56 mmol; 3 eq.) were reacted according to general procedure 2. Purification by column chromatography (c-hexane/ethyl acetate, 80/20) afforded the title compound as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08404676B2
Source datasetuspto-grants-2013_03
ORD IDord-b264994417fb4bfd9fdc525edc94c80d
Source noteuspto-grants-2013_03