Manufacture of ketone derivatives of polyoxypropylene glycols

Details Manufacture of ketone derivatives of polyoxypropylene glycols Manufacture of ketone derivatives of polyoxypropylene glycols

1989-12-26

1990-10-02

Reamer, James H.

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

Organic compounds

Oxygen containing

568404, C07C 4530

Patent

active

049609483

ABSTRACT:
Polyoxypropylene diketones are prepared by initially adding predetermined amounts of glacial acetic acid, a polyoxypropylene glycol and, optionally, water, to a reaction zone and thereafter adding an aqueous solution of an alkali metal or an alkaline earth metal hypochlorite oxidant to the reaction zone with agitation under reaction conditions including a temperature of about 10.degree. to about 50.degree. C., a pressure of about 0 to 1,000 psig. and a total reaction time of about 0.5 to 20 hours, whereby said polyoxypropylene glycol will be substantially selectively converted to the said corresponding diketone, and recovering said diketone.

REFERENCES:
patent: 2983759 (1961-05-01), Matsumoto et al.
patent: 4141919 (1979-02-01), Gremmelmaier

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