Highly Active Bio-Waste Cellulose Supported Poly(Amidoxime) Palladium(II) Complex for Heck Reactions

• Main Authors: Islam, Md. Shaharul, Lutfor, M. R., M. M., Yusoff, Sarkar, Shaheen M.
• Format: Article
• Language: English
• Published: Elsevier 2017
• Subjects: Q Science (General)
• Online Access: http://umpir.ump.edu.my/id/eprint/17471/2/Highly%20active%20bio-waste%20cellulose%20supported%20poly%28amidoxime%29%20palladium%28II%29%20complex%20for%20Heck%20reactions%201.pdf; http://umpir.ump.edu.my/id/eprint/17471/; https://doi.org/10.1016/j.jclepro.2017.02.121

Corn-cob cellulose supported poly(amidoxime) Pd(II) complex was synthesized and characterized by field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and inductively coupled plasma atomic emission spectroscopy (ICP-AES) analyses. The cellulose supported heterogeneous Pd(II) complex showed high stability and catalytic activity towards Mizoroki-Heck reaction of aryl halides and arenediazonium tetrafluoroborate with a variety of olefins to give the corresponding cross-coupling products in up to 97% yield. The Pd(II) complex was separated from the reaction mixtures and repeatedly used up to seven times without any significant decrease of its catalytic performance.