Ketone derivatives of polyoxypropylene glycols
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United States of America Patent
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Dec 25, 1990
Grant Date -
N/A
app pub date -
Dec 1, 1989
filing date -
Dec 1, 1989
priority date (Note) -
Expired
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Abstract
Diketones useful as intermediates for reaction with carboxylic acids to provide surfactants and for reaction with amine adducts to provide fuel additives are prepared from polyoxyalkylene glycols having a molecular weight of about 200 to about 2,000 and having the formula: ##STR1## wherein R is hydrogen or methyl and wherein n is a positive number having a value of 1 to about 50, The polyoxyalkylene polyol is oxidized in the presence of a halogenated alkane solvent and a ruthenium catalyst with an alkali metal or alkaline earth metal hypochlorite at a temperature of about 10.degree. to about 50.degree. C. and a pressure of about 0 to 1,000 psig. over a period of about 10 to about 20 hours to provide the corresponding diketone having the formula: ##STR2## wherein R and n have the meaning given above.
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