VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON CYCLOPROPYLACETYLEN

    公开(公告)号:EP0973708A1

    公开(公告)日:2000-01-26

    申请号:EP98910701.6

    申请日:1998-02-18

    Abstract: The invention concerns a process for halogenating cyclopropylmethyl ketone with at least one dihalogen triorganophosphorane of the general formula (I): R3PHal2, in which the R groups can be the same or different and designate a saturated or unsaturated aliphatic C1-C20 hydrocarbon group, a phenyl or C1-C4 alkylphenyl group which can optionally be further substituted by one to two fluorine, chlorine and/or nitro groups, P means phosphorus and Hal means chlorine, bromine or iodine, at 80 to 130 °C, the dihalogen triorganophosphorane of the general formula (I) being prepared in situ from triorganophosphane oxide or triorganophosphane sulphide of the general formula (II), R3PA, in which R has the meaning given under formula (I) and A stands for oxygen or sulphur, with a halogenation reagent. The process is characterized in that the triorganophosphane oxide or triorganophosphane sulphide is used in catalytic amounts. The invention also concerns the halogenation product of the cyclopropyl ketone obtained according to this process and a process for reacting it to form cyclopropylacetylene.

    Abstract translation: 本发明涉及一种用至少一种通式Iin的二卤代三有机基磷烷卤化环丙基甲基酮的方法,其中基团R可以相同或不同,表示饱和或不饱和的脂族C 1 -C 20烃基,苯基或 (C 1 -C 4烷基)苯基,其可任选被一个或两个氟,氯和/或硝基取代,P代表磷,Hal代表氯,溴或碘,温度为800°至130° ℃,其中通式(I)的二卤代三有机膦原位由通式IIin的三有机膦氧化物或三有机膦烷硫化物原位合成,其中R如上文关于式I所定义,A表示氧或硫,使用 一种卤化剂,其中三有机膦氧化物或三有机基硫化物以催化量使用于在所述方法中得到的环丙基甲基酮的卤化产物,t o将所述卤化产物转化为环丙基乙烯基的方法。

    VERFAHREN ZUR HERSTELLUNG VON CHLORCARBONSÄURECHLORIDEN
    23.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON CHLORCARBONSÄURECHLORIDEN 有权
    用于生产氯氯化物

    公开(公告)号:EP1259473B1

    公开(公告)日:2005-10-26

    申请号:EP01919355.6

    申请日:2001-02-28

    CPC classification number: C07C51/60 C07C53/50

    Abstract: The invention relates to a method for producing chlorocarboxylic acid chlorides of formula (I), wherein R?1 and R2¿, independently from one another, mean a hydrogen atom, an organic radical containing carbon, a halogen, a nitro or cyano group and Y means an alkylene chain having 1 to 10 carbon atoms in the chain which is unsubstituted or is substituted by organic radicals that contain carbon, by halogen, nitro and/or cyano groups, whereby the alkylene chain can be interrupted by an ether-, thioether-, tertiary amino- or keto group, whereby the organic radicals of Y and/or R1 and/or R2 can be connected to one another and thereby form a non-aromatic system, whereby said radicals contain carbon, by converting a lactone of formula (II), wherein R1, R2 and Y have the aforementioned meanings, using a hydrogen chloride and phosgene in the presence of a catalyst. Hydrogen chloride is added before and/or while phosgene is added. The hydrogen chloride is only introduced at a temperature of at least 60 °C. A pyridine compound is used as the catalyst.

    VERFAHREN ZUR HERSTELLUNG VON CHLORCARBONSÄURECHLORIDEN
    29.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CHLORCARBONSÄURECHLORIDEN 审中-公开
    VERFAHREN ZUR HERSTELLUNG VONCHLORCARBONSÄURECHLORIDEN

    公开(公告)号:EP1259472A1

    公开(公告)日:2002-11-27

    申请号:EP01909800.3

    申请日:2001-02-28

    CPC classification number: C07C51/60 C07C53/50

    Abstract: The invention relates to a method for producing chlorocarboxylic acid chlorides of formula (I), wherein R?1 and R2¿, independently from one another, mean a hydrogen atom, an organic radical containing carbon, a halogen, a nitro or cyano group and Y means an alkylene chain having 1 to 10 carbon atoms in the chain which is unsubstituted or is substituted by organic radicals that contain carbon, by halogen, nitro and/or cyano groups, whereby the alkylene chain can be interrupted by an ether-, thioether-, tertiary amino- or keto group, whereby the organic radicals of Y and/or R1 and/or R2 can be connected to one another and thereby form a non-aromatic system, whereby said radicals contain carbon, by converting a lactone of formula (II), wherein R1, R2 and Y have the aforementioned meanings, using a chlorination means in the presence of a chlorination catalyst and in the presence of a boron compound.

    Abstract translation: 本发明涉及制备式(I)的氯代羧酸氯化物的方法,其中R 1和R 2彼此独立地表示氢原子,含碳的有机基团,卤素,硝基或氰基,和 Y表示在未被取代或被含有碳的有机基团取代的链中具有1至10个碳原子的亚烷基链,其通过卤素,硝基和/或氰基基团取代,其中亚烷基链可被醚 - ,硫醚 - 叔氨基或酮基,其中Y和/或R 1和/或R 2的有机基团可以彼此连接并由此形成非芳族体系,由此所述基团含有碳,通过将式 (II)化合物,其中R1,R2和Y具有上述含义,使用氯化方法在氯化催化剂存在下和在硼化合物存在下进行。

    VERFAHREN ZUR REINIGUNG VON CARBONSÄURECHLORIDEN
    30.
    发明公开
    VERFAHREN ZUR REINIGUNG VON CARBONSÄURECHLORIDEN 有权
    清理方法碳酰氯

    公开(公告)号:EP1212273A2

    公开(公告)日:2002-06-12

    申请号:EP00972657.1

    申请日:2000-08-31

    CPC classification number: C07C51/64 C07C53/42

    Abstract: The invention relates to a method for purifying acid chlorides which have been produced by converting carboxylic acids with carbon oxychloride or thionyl chloride in the presence of a catalyst adduct. The acid chlorides are treated with a hydro halide of carboxylic acid amides of general formula (I), wherein R1 stands for hydrogen or C¿1?- to C3-alkyl; R?2 and R3¿, independently from one another, mean C¿1?- to C4-alkyl or R?2 and R3¿ together mean a C¿4?- or C5-alkylene chain. The thus purified acid chloride is isolated by separation said acid chloride from the carboxylic acid amide hydro halide-phase.

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