Ketone derivatives of polyoxypropylene glycols

Details Ketone derivatives of polyoxypropylene glycols Ketone derivatives of polyoxypropylene glycols

C - Chemistry, Metallurgy

07

C

260/585.1

C07C 45/29 (2006.01) C07C 45/30 (2006.01) C07C 49/175 (2006.01) C07C 49/255 (2006.01)

Patent

CA 2026938

KETONE DERIVATIVES OF POLYOXYPROPYLENE GLYCOLS (Docket No. 80,870-F) ABSTRACT OF THE DISCLOSURE 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: Image (I) 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° to about 50°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: Image (II) wherein R and n have the meaning given above.

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