Ketone derivatives of polyoxypropylene glycols

Details Ketone derivatives of polyoxypropylene glycols Ketone derivatives of polyoxypropylene glycols

1989-12-01

1990-12-25

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568385, C07C 4529

Patent

active

049805142

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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Anelli et al., J. Org. Chem., vol. 52, pp. 2559-2562 (1987).

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