Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Furfural | HCID 7362 | — |
| Reactant | 4-Chloro-N-hydroxy-2-methylbenzamidine | HCID 5152148 | — |
| Catalyst | Piperidine | HCID 8082 | — |
| Product | HCID 178426101 | HCID 178426101 | 18.1% |
Reaction Steps
A mixture of 2-furancarboxaldehyde (166 mL, 192 mg, 2.0 mmol), 4-chloro-N′-hydroxy-2-methylbenzimidamide (368 mg, 2.0 mmol) and one drop of piperidine was heated to 10° C. for 4 h. The mixture was cooled to room temperature and purified by automated column chromatography on the ISCO COMPANION (SiO2, gradient heptanes/ethyl acetate) to give the 3-(4-chloro-2-methylphenyl)-5-(furan-2-yl)-4,5-dihydro-1,2,4-oxadiazole product (95 mg) with a yield of 18%. LC-MS [M+H] 263 (C13H11ClN2O2+H, expected 263.05)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09232800B2 |
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| Source dataset | uspto-grants-2016_01 |
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| ORD ID | ord-21a42dd58c2249dc83c587efe413fbc4 |
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| Source note | uspto-grants-2016_01 |
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