Oxidation of alkynes, both terminal and internal, is performed by hydrogen peroxide in the presence of catalytic amounts of (cetylpyridinium)3PM12O40 (M = Mo(VI), W(VI)). A comparison with the analogous oxidation reactions catalyzed by Na2MO4 reveals that PM12O40 3- anions are more efficient catalysts than MO4 2- in the oxidation of terminal alkynes to carboxylic acids. The higher catalytic activity of peroxometalates allows the oxidation of internal alkynes by hydrogen peroxide, which does not occur with MO4 2- salts.

Oxidation of alkynes, both terminal and internal, is performed by hydrogen peroxide in the presence of catalytic amounts of (cetylpyridinium)3PM1204(M = Mo(VI), W(VI)). A comparison with the analogous oxidation reactions catalyzed by Na2MO4 reveals that PM120403- anions are more efficient catalysts than M042- in the oxidation of terminal alkynes to carboxylic acids. The higher catalytic activity of peroxometalates allows the oxidation of internal alkynes by hydrogen peroxide, which does not occur with M042- salts.

OXIDATION OF ALKYNES CATALYZED BY MO(VI) AND W(VI) POLYOXOMETALATES

BALLISTRERI, Francesco Paolo;FAILLA, Salvatore;TOMASELLI, Gaetano
1989-01-01

Abstract

Oxidation of alkynes, both terminal and internal, is performed by hydrogen peroxide in the presence of catalytic amounts of (cetylpyridinium)3PM12O40 (M = Mo(VI), W(VI)). A comparison with the analogous oxidation reactions catalyzed by Na2MO4 reveals that PM12O40 3- anions are more efficient catalysts than MO4 2- in the oxidation of terminal alkynes to carboxylic acids. The higher catalytic activity of peroxometalates allows the oxidation of internal alkynes by hydrogen peroxide, which does not occur with MO4 2- salts.
1989
Oxidation of alkynes, both terminal and internal, is performed by hydrogen peroxide in the presence of catalytic amounts of (cetylpyridinium)3PM1204(M = Mo(VI), W(VI)). A comparison with the analogous oxidation reactions catalyzed by Na2MO4 reveals that PM120403- anions are more efficient catalysts than M042- in the oxidation of terminal alkynes to carboxylic acids. The higher catalytic activity of peroxometalates allows the oxidation of internal alkynes by hydrogen peroxide, which does not occur with M042- salts.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/30516
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