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Highly Active and Reusable Kenaf Cellulose Supported Bio-Poly(hydroxamic acid) Functionalized Copper Catalysts for C–N Bond Formation Reactions

Siti Hajar, Mohamad Ros and Islam, Md. Shaharul and Lutfor, M. R. and Rashid, Shah Samiur and Chowdhury, Zaira Zaman and Ali, Md. Eaqub and Sarkar, Shaheen M. (2017) Highly Active and Reusable Kenaf Cellulose Supported Bio-Poly(hydroxamic acid) Functionalized Copper Catalysts for C–N Bond Formation Reactions. BioResources, 12 (1). pp. 882-898. ISSN 1930-2126 (print); 1930-2126 (online)

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Abstract

Distinctly active poly(hydroxamic acid) anchored copper (Cu) catalysts were synthesized from chemically modified kenaf cellulose. They were characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), inductively coupled plasma atomic emission spectrometry (ICP-AES), UV-vis spectroscopy (UV), and X-ray photoelectron spectroscopy (XPS). The Cu-catalysts were successfully applied to the Michael addition reaction of amines with α,β-unsaturated carbonyl/cyano compounds and to the Click reactions of organoazides with alkynes under mild reaction conditions. The catalysts enabled excellent yields (88% to 95%) in both of the C–N bond formation reactions and showed easy recycling with outstanding reusability for seven cycles without any distinguished decrease in their catalytic activity.

Item Type: Article
Uncontrolled Keywords: Graft Co-polymerization; Catalyst; Poly(hydroxamic acid); Polymer; Cellulose
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Dr. Md Shaheen Sarkar
Date Deposited: 29 Nov 2017 03:04
Last Modified: 14 Feb 2018 03:38
URI: http://umpir.ump.edu.my/id/eprint/18968
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