Cellulose supported poly(amidoxime) copper complex for Click reaction. (10th January 2017)

• Record Type: Journal Article
• Authors: Sarkar, Shaheen M.; Rahman, Md Lutfor
• Is Part Of: Journal of cleaner production. Volume 141(2017)
• Page Start: 683
• Page End: 692
• Publication Date: 2017-01-10
• Subjects: Cellulose -- Click reaction -- Copper complex -- Poly(amidoxime) -- Triazole; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2016.09.153
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: A highly active poly(amidoxime) copper complex was prepared by the surface modification of kenaf cellulose through graft copolymerization and subsequent amidoximation. The prepared copper complex was characterized by IR, FESEM, TEM, XPS, EDX and ICP-AES analyses. The copper complex was applied to the Click reaction of organic azides and alkynes as well as one-pot three-component reactions in presence of sodium ascorbate to give the corresponding cycloaddition products in up to 96% yield. The complex was easy to recover and reused six times without significance loss of its activity. Graphical abstract: Image 1 Highlights: Highly active and cost effective kenaf cellulose supported poly(amidoxime) Cu-catalyst was prepared. The catalyst was characterized by using several spectroscopic techniques. The catalyst (0.05 mol% to 50 mol ppm) was efficiently promoted Click reaction in pure water. The catalyst was reused several times without significance loss of its activity.