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
Participants
| Role | Name | HCID | Charge |
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| Reactant | Toluene | HCID 1140 | — |
| Reactant | 3-(Chloromethyl)pyridine | HCID 18358 | — |
| Reactant | 2-chloro-N'-hydroxyethanimidamide | HCID 4112252 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 2-[3-(Chloromethyl)-1,2,4-oxadiazol-5-yl]pyridine | HCID 16228234 | — |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08097594B2 |
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| Source dataset | uspto-grants-2012_01 |
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| ORD ID | ord-371b512a97684df8b2e9c8f341ab1688 |
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| Source note | uspto-grants-2012_01 |
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