HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 431965Generated: October 31, 2026
Potassium Carbonate → HCID 21942534, compound
https://huagongshe.com/reaction/431965
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Bromomethylcyclopropane | HCID 81503 | — |
| Reactant | HCID 9878436 | HCID 9878436 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 21942534 | HCID 21942534 | 41% |
Reaction Steps
A mixture of 3-(2-pyridyl)-5-(3-cyano-5-hydroxyphenyl)-1,2,4-oxadiazole (25 mg, 0.095 mmol), potassium carbonate (26 mg, 0.19 mmol) and (bromomethyl)cyclopropane (14 μL, 0.14 mmol) in N,N-dimethylformamide (1 mL) was heated in a sealed vial at 90° C. for 2 hours. The reaction was cooled, diluted with dichloromethane, washed with water (3×) and saturated brine, filtered and concentrated. Silica gel chromatography of the residue using hexanes/ethyl acetate/dichlrormethane (3.5:0.5:4) followed by trituration with diethyl ether afforded 12 mg (41%) of 3-(2-pyridyl)-5-(3-cyano-5-cylopropylmethoxyphenyl)-1,2,4-oxadiazole: 1H NMR (CDCl3), δ (ppm): 8.86 (d, 1H), 8.23 (d, 1H), 8.14 (s, 1H), 7.99 (s, 1H), 7.91 (t, 1H), 7.50 (m, 1H), 7.40 (s, 1H), 3.95 (d, 2H), 1.21 (m, 1H), 0.72 (m, 2H), 0.41 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06660753B2 |
|---|
| Source dataset | uspto-grants-2003_12 |
|---|
| ORD ID | ord-2ada1254fe9944e68c50265b33746b04 |
|---|
| Source note | uspto-grants-2003_12 |
|---|