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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 420433Generated: October 25, 2026

Toluene → 2-[3-(Chloromethyl)-1,2,4-oxadiazol-5-yl]pyridine

https://huagongshe.com/reaction/420433

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
Reactant3-(Chloromethyl)pyridineHCID 18358—
Reactant2-chloro-N'-hydroxyethanimidamideHCID 4112252—
SolventEthyl AcetateHCID 8857—
Product2-[3-(Chloromethyl)-1,2,4-oxadiazol-5-yl]pyridineHCID 16228234—

Reaction Conditions

Temperature110 °C

Reaction Steps

Step-1: To the stirred solution of 2-chloroacetamidoxime (1.0 g, 9.2 mmol, prepared as per the procedure given in PCT/US02/22897) in toluene (15 ml) was added nicotinyl chloride (1.37 g, 9.67 mmol) and heated at 110° C. for 4 hr. The reaction mixture was diluted with ethyl acetate (50 ml) and washed with aqueous saturated sodium bicarbonate solution (2×25). Organic layer was evaporated under vacuum to yield the crude product. The crude product was purified using silica gel column chromatography (15% Acetone-Hexane) to give 2-(3-chloromethyl-[1,2,4]-oxadiazole-5-yl)-pyridine in 55% (0.550 g) yield. MS: m/z: 196.7 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08097594B2
Source datasetuspto-grants-2012_01
ORD IDord-371b512a97684df8b2e9c8f341ab1688
Source noteuspto-grants-2012_01