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    PROCESS FOR PREPARING PERFUMING INTERMEDIATE
    1.
    发明申请
    PROCESS FOR PREPARING PERFUMING INTERMEDIATE 有权

    公开(公告)号：US20230095887A1

    公开(公告)日：2023-03-30

    申请号：US17793216

    申请日：2021-03-04

    申请人： Firmenich SA

    发明人： Oliver KNOPFF

    IPC分类号： C07C45/68 ,  C07C49/687 ,  C07C45/67 ,  B01J31/22

    摘要： The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I) by a cross metathesis reaction. Said compound of formula (I) is valuable new chemical intermediate for producing perfuming ingredients and is also part of the present invention.

    Process for preparation of halogenated or pseudohalogenated cyclic organic compounds
    3.
    发明授权
    Process for preparation of halogenated or pseudohalogenated cyclic organic compounds 失效
    制备卤化或假卤代环状有机化合物的方法

    公开(公告)号：US5817890A

    公开(公告)日：1998-10-06

    申请号：US401254

    申请日：1995-03-09

    申请人： Lucette Duhamel ,  Pierre Duhamel ,  Bertrand Leblond ,  Jean-Marie Poirier

    发明人： Lucette Duhamel ,  Pierre Duhamel ,  Bertrand Leblond ,  Jean-Marie Poirier

    IPC分类号： C07D301/26 ,  C07C29/10 ,  C07C29/124 ,  C07C29/64 ,  C07C35/48 ,  C07C37/06 ,  C07C39/24 ,  C07C39/26 ,  C07C39/28 ,  C07C39/373 ,  C07C45/51 ,  C07C45/58 ,  C07C49/463 ,  C07C49/687 ,  C07D303/08

    CPC分类号： C07C45/512 ,  C07C35/48 ,  C07C45/58 ,  C07C49/463 ,  C07C49/687 ,  C07D303/08

    摘要： The present invention relates to new fluorinated hexane compounds corresponding to the following general formula (II): ##STR1## in which X'.sub.2, X'.sub.3, and X'.sub.4 are the same or different, and denote a halogen or a pseudohalogen, preferably a halogen, more preferably chlorine and fluorine, with the condition that, when R.sub.1 is hydroxyl, cyano, amido, imido, ethoxy, benzyloxy, cyclohexyloxy and tert-butoxy, not all the halogens can simultaneously be chlorine and R.sub.4, R.sub.3 and R.sub.5 are simultaneously equal to H; R.sub.1 denotes a hydrogen, a hydrocarbon chain such as an alkyl chain, alkoxy, cycloalkyl ether, an aromatic group, aromatic ether or an alkoxy, carbonyl, carboxyl or acyloxy, cyano, amido, imido or hydroxyl group; R.sub.4 denotes a hydrogen, a fluorine atom, a hydrocarbon chain such as, for example, an alkyl chain, an aromatic group or a carbonyl, carboxyl or carboxamide group or else a radical joined to the hexane ring by a chalcogen or by an element of Group V, preferably of the first Period, such as an amido, alkoxy or acyloxy group; in which the radicals R.sub.3 and R.sub.5, which are different or preferably the same, denote a fluorine, or preferably hydrogen, atom or also a hydrocarbon chain as defined above in the case of R.sub.4.

    摘要翻译： 本发明涉及对应于以下通式（II）的新的氟化己烷化合物：其中X'2，X'3和X'4相同或不同，表示卤素或假卤素， 优选卤素，更优选氯和氟，条件是当R1是羟基，氰基，酰氨基，亚氨基，乙氧基，苄氧基，环己氧基和叔丁氧基时，不是所有的卤素都可以同时为氯，R4，R3和R5 同时等于H; R 1表示氢，烃链如烷基链，烷氧基，环烷基醚，芳族基团，芳族醚或烷氧基，羰基，羧基或酰氧基，氰基，酰胺基，亚氨基或羟基; R4表示氢，氟原子，烃链，例如烷基链，芳族基团或羰基，羧基或羧酰胺基团，或者由硫属化合物连接到己烷环上的基团，或者由 优选第一阶段的V族如酰氨基，烷氧基或酰氧基; 其中不同或优选相同的基团R3和R5表示在R4的情况下如上所定义的氟或优选氢原子或烃链。

    Process for the manufacture of tetrachlorocyclobutenone from hexachlorocyclobutene
    8.
    发明授权
    Process for the manufacture of tetrachlorocyclobutenone from hexachlorocyclobutene 失效
    从六氯环丁烯制造四氯环丁酮的方法

    公开(公告)号：US4272633A

    公开(公告)日：1981-06-09

    申请号：US19205

    申请日：1979-03-09

    申请人： Gunther Maahs ,  Konrad Rombusch

    发明人： Gunther Maahs ,  Konrad Rombusch

    IPC分类号： C07C45/00 ,  B01J27/00 ,  C07B61/00 ,  C07C45/27 ,  C07C45/42 ,  C07C45/43 ,  C07C49/457 ,  C07C49/687 ,  C07C67/00 ,  C07C49/593

    CPC分类号： C07C45/42 ,  C07C45/27 ,  C07C45/43

    摘要： A process for preparing tetrachlorocyclobutenone from hexachlorocyclobutene comprises reacting (a) hexachlorocyclobutene withI. (b) anhydrous sulphuric acid and (c) sulphur trioxide; orII. (b) anhydrous sulphuric acid and (d) phosphorus pentoxideat a temperature of 30.degree.-140.degree. C.;the starting materials being present in the following molar ratios at the start of the reaction:for I,(a):(c)=0.67-10, and(b):(c)=0.1-10;and for II,(a):(d)=0.67-10 and(b):(d)=0.5-20.

    摘要翻译： 从六氯环丁烯制备四氯环丁酮的方法包括使（a）六氯环丁烯与I.（b）无水硫酸和（c）三氧化硫反应; 或II。 （b）无水硫酸和（d）五氧化二磷，温度为30-140℃。 原料在反应开始时以以下摩尔比存在：对于I，（a）：（c）= 0.67-10，和（b）：（c）= 0.1-10; 对于II，（a）:( d）= 0.67-10和（b）：（d）= 0.5-20。