| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5157476 | Carbohydrate Polymers | 2017 | 7 Pages |
Abstract
Corn-cob cellulose supported poly(hydroxamic acid) Cu(II) complex was prepared by the surface modification of waste corn-cob cellulose through graft copolymerization and subsequent hydroximation. The complex was characterized by IR, UV, FESEM, TEM, XPS, EDX and ICP-AES analyses. The complex has been found to be an efficient catalyst for 1,3-dipolar Huisgen cycloaddition (CuAAC) of aryl/alkyl azides with a variety of alkynes as well as one-pot three-components reaction in the presence of sodium ascorbate to give the corresponding cycloaddition products in up to 96% yield and high turn over number (TON 18,600) and turn over frequency (TOF 930Â hâ1) were achieved. The complex was easy to recover from the reaction mixture and reused six times without significant loss of its catalytic activity.
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Authors
Bablu Hira Mandal, Md. Lutfor Rahman, Mashitah Mohd Yusoff, Kwok Feng Chong, Shaheen M. Sarkar,