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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 431965Generated: October 31, 2026

Potassium Carbonate → HCID 21942534, compound

https://huagongshe.com/reaction/431965

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantBromomethylcyclopropaneHCID 81503—
ReactantHCID 9878436HCID 9878436—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 21942534HCID 2194253441%

Reaction Conditions

Temperature90 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06660753B2
Source datasetuspto-grants-2003_12
ORD IDord-2ada1254fe9944e68c50265b33746b04
Source noteuspto-grants-2003_12