GREEN SYNTHESIS OF CELLULOSE-SUPPORTED PD(0) NANOPARTICLES USING RESVERATROL AS BIOREDUCTANT AND THEIR CATALYTIC ACTIVITY FOR SUZUKI-MIYAURA AND HECK COUPLING REACTIONS Page No: 4685-4698

By: Hirok Jyoti Borah, Rajiv Goswami, Geetika Borah and Swapnali Hazarika

Keywords: Pd nanoparticle, catalyst, resveratrol, suzuki-miyaura, heck coupling.

Abstract: The cellulose supported Pd(0) nanoparticles [Pd(0)NPs@Cellulose] have been synthesized using resveratrol as a bioreductant which have been isolated from heartwood of Artocarpus lakoocha roxb.. The synthesized Pd(0)NPs@Cellulose have been characterized by UV-Vis, FTIR, XRD, TEM, XPS and ICP-AES analysis. The cellulose supported Pd(0) nanoparticles [Pd(0)NPs@Cellulose] have homogeneous particle size distribution in the range of 20-40 nm. The catalytic activity of Pd(0)NPs@Cellulose have been studied in the Suzuki-Miyaura and Heck cross-coupling reactions under microwave heating. The optimum reaction conditions have been established for a yield in the range of 88% and 98%. The recovered catalyst has showed its activity up to 10 cycles without major lose of yield of product.



[View Complete Article]