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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 431959Generated: November 1, 2026

Potassium Carbonate → HCID 9966304, compound

https://huagongshe.com/reaction/431959

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-IodopropaneHCID 33643—
ReactantHCID 9878436HCID 9878436—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 9966304HCID 996630440%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 3-(2-pyridyl)-5-(3-cyano-5-hydroxyphenyl)-1,2,4-oxadiazole (20 mg, 0.077 mmol), potassium carbonate (107 mg, 0.77 mmol) and propyl iodide (0.023 mL, 0.23 mmol) in N,N-dimethylformamide (1 mL) were heated in a sealed vial at 150° C. for 5 minutes. After cooling the reaction was diluted with dichloromethane, washed with water (3 times) and saturated brine, filtered and concentrated. Silica gel chromatography using a mixture of hexanes, ethyl acetate, and dichloromethane (3.5:0.5:4) followed by trituration with diethyl ether and hexanes afforded 9 mg (40%) of 3-(2-pyridyl)-5-(3-cyano-5-propoxyphenyl)-1,2,4-oxadiazole: 1H NMR (CDCl3): δ-8.86 (d, 1H), 8.23 (d, 1H), 8.14 (s, 1H), 8.00 (s, 1H), 7.91 (t, 1H), 7.49 (m, 1H) 7.39 (s, 1H), 4.06 (t, 2H), 1.88 (m, 2H), 1.08 (t, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06660753B2
Source datasetuspto-grants-2003_12
ORD IDord-c0f77a35c59342f387155bc0a8fd26b8
Source noteuspto-grants-2003_12