Preparation of alkoxy maleic anhydrides
    7.
    发明授权
    Preparation of alkoxy maleic anhydrides 失效
    制备烷氧基马来酸酐

    公开(公告)号:US4877887A

    公开(公告)日:1989-10-31

    申请号:US189297

    申请日:1988-05-02

    CPC classification number: C07D207/456 C07C59/58

    Abstract: The invention relates to novel alkoxy substituted maleimides of the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, phenyl or phenylalkyl, and the organic radicals may furthermore carry inert substituents, and R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl, and alkoxy-substituted maleic anhydrides of the formula II ##STR2## where R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl and Z is hydrogen, halogen or a radical OR.sup.3, where R.sup.3 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl.The invention further relates to processes for preparing such maleimides I and the corresponding maleic anhydrides II and their use as graft monomers in graft polymers based on polyphenylene ethers.

    Abstract translation: 本发明涉及式Ⅰ的新的烷氧基取代的马来酰亚胺,其中R 1是氢,C 1 -C 8 - 烷基,C 2 -C 8 - 烯基,苯基或苯基烷基,有机基团还可带有惰性取代基,R2和R3 C 1 -C 4 - 烷基,C 2 -C 4 - 烯基,C 1 -C 4 - 卤代烷基或C 2 -C 4 - 卤代烯基,以及式II其中R 2是C 1 -C 4 - 烷基的C 2 -C 4烷氧基取代的马来酸酐 C 4 - 烯基,C 1 -C 4 - 卤代烷基或C 2 -C 4 - 卤代烯基,Z是氢,卤素或基团OR 3,其中R 3是C 1 -C 4烷基,C 2 -C 4 - 链烯基,C 1 -C 4卤代烷基或C 2 -C 4 - C4-卤代链烯基。 本发明还涉及制备这种马来酰亚胺I和相应的马来酸酐II的方法及其作为基于聚苯醚的接枝聚合物中的接枝单体的用途。

    Fluorosulfonate containing polyfluorocarbonyl compounds
    10.
    发明授权
    Fluorosulfonate containing polyfluorocarbonyl compounds 失效
    含氟磺酸盐的多氟羰基化合物

    公开(公告)号:US4603017A

    公开(公告)日:1986-07-29

    申请号:US720163

    申请日:1985-04-05

    CPC classification number: C07C45/54 C07C305/26 C07C49/167 C07C51/00 C07C59/21

    Abstract: Perfluorocarbonyl compounds of the formulae IV and V ##STR1## in which R.sub.f denotes perfluoroalkyl, R'.sub.f denotes perfluoroalkylene, R denotes F, Cl, perfluoroalkyl or --OR"' (R"'=alkyl, aryl or aralkyl) and n denotes a number from 0 to 10, are prepared, starting from compounds of the formula I ##STR2## in which R.sub.f, R'.sub.f and n have the same meaning as in the formulae IV and V and R" is F, Cl or perfluoroalkyl, by electrolysis in an electrolyte consisting of fluorosulfonic acid/alkali metal fluorosulfonate and, if necessary, esterification with R"'OH, and decomposition ##STR3## in the presence of catalytic amounts of alkali metal fluorides and/or aprotic N-bases. Most of the compounds IV and V are new; the latter are, above all, valuable heat transfer fluids, lubricating oils or intermediates for the preparation of other F-organic compounds.

    Abstract translation: (IV)的全氟羰基化合物其中Rf表示全氟烷基,R'f表示全氟亚烷基,R表示F,Cl,全氟烷基或-OR“(R”') =烷基,芳基或芳烷基),n表示0至10的数,从其中R f,R'f和n与式(I)中相同含义的式I的化合物 IV和V和R“是F,Cl或全氟烷基,通过在由氟磺酸/碱金属氟代磺酸盐组成的电解质中电解并在需要时与R”OH进行酯化,并在催化剂存在下分解“IMAGE” 碱金属氟化物和/或非质子N-碱的量。 大多数化合物IV和V是新的; 后者首先是有价值的传热流体,润滑油或用于制备其它F-有机化合物的中间体。

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