Koshy, Ebey P. ; Zacharias, Jose ; Rajasekharan Pillai, V. N. (2006) Poly(N-vinylpyrrolidone)-hydrotribromide: a new gel-type resin for alcohol oxidation and alkene dibromination Reactive and Functional Polymers, 66 (8). pp. 845-850. ISSN 1381-5148
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S13815...
Related URL: http://dx.doi.org/10.1016/j.reactfunctpolym.2005.11.012
Abstract
Poly(N-vinylpyrrolidone) crosslinked with tetraethyleneglycol diacrylate was prepared and used as solid support for immobilizing bromine function. The resin bound hydrotribromide was found to be an efficient reagent for the oxidation of alcohols and dibromination of alkenes. The role of the macromolecular matrix in dictating the efficiency of the oxidizing reagent was elucidated by preparing crosslinked polyvinylpyrrolidone resins with varying mole percent of cross-linking agent. Studies revealed that the extent of functionalisation as well as the reactivity of the oxidizing function was highly dependent on the degree of crosslinking of the macromolecular matrix. The effect of various reaction conditions such as the temperature, solvent and molar concentration of the reagent was also examined in order to find the optimum conditions for oxidising reactions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Polyvinylpyrrolidone Support; Solid Phase Organic Synthesis; Polymeric Oxidising Reagents; Polymeric Halogenating Reagents; Degree of Crosslinking |
| ID Code: | 38605 |
| Deposited On: | 23 May 2011 08:02 |
| Last Modified: | 23 May 2011 08:02 |
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