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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 336284Generated: October 29, 2026

Oxalyl chloride → 5-(2'-Methoxy-2-methylbiphenyl-4-YL)-3-[2-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole

https://huagongshe.com/reaction/336284

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantDiisopropylethylamineHCID 81531—
ReactantN'-hydroxy-2-(trifluoromethoxy)benzenecarboximidamideHCID 2794708—
Reactant4-(2-Methoxyphenyl)-3-methylbenzoic acidHCID 21947759—
Product5-(2'-Methoxy-2-methylbiphenyl-4-YL)-3-[2-(trifluoromethoxy)phenyl]-1,2,4-oxadiazoleHCID 25256565—

Reaction Steps

Oxalyl chloride (126 μL; 1.49 mmol; 3 eq.), Intermediate 26 (120 mg; 0.5 mmol; 1 eq.), Intermediate 2 (109 mg; 0.5 mmol, 1 eq.) and DIEA (256 μL; 1.49 mmol; 3 eq.) were reacted according to general procedure 2. Purification by column chromatography c-hexane/ethyl acetate, 95/5) afforded the title compound as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08889668B2
Source datasetuspto-grants-2014_11
ORD IDord-2b5153e5be2b464fa80b90ad6b280a6f
Source noteuspto-grants-2014_11