Palladium supported on silica–chitosan hybrid material (Pd‐CS@SiO₂) for Suzuki–Miyaura and Mizoroki–Heck cross‐coupling reactions

Abstract

Palladium supported on silica-chitosan hybrid material was prepared and characterized using thermogravimetric and differential thermogravimetric analyses, scanning electron microscopy, and Fourier transform infrared, energy-dispersive X-ray and X-ray photoelectron spectroscopies. The prepared Pd-CS@SiO 2 catalyst (1 mol%) was used for the SuzukiMiyaura cross-coupling reaction of various aryl halides and arylboronic acids in 95% ethanol at 80°C and the MizorokiHeck reaction in dimethylformamide at 110°C using K 2 CO 3 as a base. The developed catalyst is well suitable for the 3R approach (recoverable, robust, recyclable) for cross-coupling reactions without appreciable loss of its activity. Copyright

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