Cyanoaniline Coupling Catalysis Protocol

Example 5

In a reaction bottle, adding p-cyanoaniline (59 mg, 0.5 mmol), catalyst (28 mg, 0.05 mmol), di-tert-butyl peroxide (92 μL, 0.5 mmol), and mesitylene (7 mL) were added sequentially. The reaction was carried out at 100° C. for 40 hours. After the reaction was completed, the action mixture was cooled to room temperature. The product was purified by column chromatography eluting with ethyl acetate/petroleum ether with a volume ratio of 1:10, a yield of 84%.

The product was dissolved in CDCl₃ (ca. 0.4 mL), sealed, and characterized on a Unity Inova-400 NMR apparatus at room temperature: ¹H NMR (400 MHz, CDCl₃, TMS): 7.52-7.39 (m, 2H), 7.01 (s, 3H), 6.74-6.58 (m, 2H), 4.75 (s, 1H), 4.35 (d, J=5.1 Hz, 2H), 2.38 (s, 6H) ppm.