Functionalization of Crosslinked Poly(4-Vinylpyridine) and Poly(4-Vinylpyridine-co-Styrene) With Permanganate Species: Preparation of Poly(4-Vinylpyridinium Permanganate)s and Their Use as Oxidizing Reagents

Crosslinked poly(4-vinylpyridine) and poly(4-vinylpyridine-co-styrene) were functionalized with permanganate group to afford the corresponding poly(4-polyvinyl(pyridinium permanganate)) resin. These resins were found to selectively oxidize alcohols to corresponding carbonyl compounds. These insolubl...

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Veröffentlicht in:Journal of polymer science. Polymer chemistry edition 1989-08, Vol.27 (9), p.2897-2906
Hauptverfasser: John, K J, Pillai, V N R
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creator John, K J
Pillai, V N R
description Crosslinked poly(4-vinylpyridine) and poly(4-vinylpyridine-co-styrene) were functionalized with permanganate group to afford the corresponding poly(4-polyvinyl(pyridinium permanganate)) resin. These resins were found to selectively oxidize alcohols to corresponding carbonyl compounds. These insoluble functionalized polymers possess the desired characteristics of the polymeric reagents, including operational simplicity, filterability, and regenerability. The influence of solvent, duration of reaction, and molar excess of the reagent in these oxidation reactions was investigated to find out the optimum conditions for effective oxidation reactions. The reactions were found to be more facilitated in nonpolar solvents, and a large excess of the polymeric reagent did not have any significant effect on the extent of reactions. The poly(vinyl(pyridinium permanganate)) resin bears a contrast to KMnO sub 4 and other polymer-supported oxidizing agents like poly(4-vinyl(pyridinium chlorochromate)) in that it does not bring about the oxidation of the alcohol group directly attached to the ring structure. 19 ref.--AA
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title Functionalization of Crosslinked Poly(4-Vinylpyridine) and Poly(4-Vinylpyridine-co-Styrene) With Permanganate Species: Preparation of Poly(4-Vinylpyridinium Permanganate)s and Their Use as Oxidizing Reagents
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