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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1950859Generated: October 26, 2026

Oxalyl chloride → 5-[3-Methoxy-4-(4-methyl-3-thienyl)phenyl]-3-(2-methoxyphenyl)-1,2,4-oxadiazole

https://huagongshe.com/reaction/1950859

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantDiisopropylethylamineHCID 81531—
ReactantN-Hydroxy-2-methoxy-benzamidineHCID 4652214—
Reactant3-Methoxy-4-(4-methyl-3-thienyl)benzoic acidHCID 59495795—
Product5-[3-Methoxy-4-(4-methyl-3-thienyl)phenyl]-3-(2-methoxyphenyl)-1,2,4-oxadiazoleHCID 59606535—

Reaction Steps

Oxalyl chloride (120 μL; 1.45 mmol; 3 eq.), Intermediate 29 (120 mg; 0.48 mmol; 1 eq.), Intermediate 1 (80 mg; 0.48 mmol, 1 eq.) and DIEA (250 μL; 1.45 mmol; 3 eq.) were reacted according to general procedure 2. Purification by precipitation from DCM/n-pentane afforded the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08404676B2
Source datasetuspto-grants-2013_03
ORD IDord-dd193f1f142a4b12bc37dbe30ca3120a
Source noteuspto-grants-2013_03