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    • 74. 发明授权
    • Ketone derivatives of polyoxypropylene glycols
    • 聚氧丙烯二醇的酮衍生物
    • US4980514A
    • 1990-12-25
    • US444211
    • 1989-12-01
    • John R. SandersonEdward T. Marquis
    • John R. SandersonEdward T. Marquis
    • B01J23/46C07B61/00C07C45/29C07C45/30C07C49/175C08G65/32
    • C07C49/175C07C45/29C07C45/30
    • 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.
    • 可用作与羧酸反应以提供表面活性剂和与胺加合物反应以提供燃料添加剂的中间体的二酮由具有约200至约2,000的分子量的聚氧亚烷基二醇制备,具有下式:其中R 是氢或甲基,其中n为1至约50的正数。聚氧化烯多元醇在卤化烷烃溶剂和钌催化剂存在下,在碱金属或碱土金属次氯酸盐的存在下,在 约10℃至约50℃,压力为约0至1,000psig。 在约10至约20小时的时间内提供具有下式的相应二酮:其中R和n具有上述含义。