Oxidation of ketones
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United States of America Patent
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Sep 9, 1997
Grant Date -
N/A
app pub date -
Oct 12, 1995
filing date -
Mar 13, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the catalysed oxidation of ketones to esters or lactones with hydrogen peroxide in the presence of a carboxylic acid or anhydride is provided. The process employs gamma alumina as a heterogeneous catalyst. In certain preferred embodiments the catalyst also contains a tungsten-containing heteropolyacid. Preferably, the heteropolyacid contains phosphorus. In a related process, the catalyst accelerates the formation of percarboxylic acid solutions.
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