PROCESS FOR PREPARING A (HETERO)AROMATIC OLEFIN
    51.
    发明申请
    PROCESS FOR PREPARING A (HETERO)AROMATIC OLEFIN 审中-公开
    制备(异齿)芳香油的方法

    公开(公告)号:WO98049128A1

    公开(公告)日:1998-11-05

    申请号:PCT/NL1998/000231

    申请日:1998-04-24

    摘要: The invention relates to a process for preparing a (hetero)aromatic olefin, in which an optionally substituted olefin is arylated in the presence of a metal (compound) containing a metal from any one of groups 8, 9 or 10 of the Periodic System, a compound being chosen as the arylating agent that has the formula (1): Ar-CO-YCOA where Ar stands for an optionally substituted (hetero)aromatic group; A stands for an optionally substituted (hetero)aromatic or aliphatic group, an optionally substituted alkoxy or aryloxy group or a bond with Ar; Y stands for an optionally substituted heteroatom, and the arylation is carried out in the presence of a halide. As the arylating agent use is preferably made of an aromatic carboxylic anhydride, for example benzoic anhydride. Suitable for use as the (metal) compound containing a metal from any one of groups 8, 9 or 10 of the Periodic System is a compound from the group comprising PdCl2, PdBr2, PdI2, Na2PdCl4, Na2PdCl6, Pd2(dibenzylidene acetone)3, (Ph3P)4Pd, (PhCN)2PdCl2, Pd(OAc)2 and PdSO4. Suitable for use as the halide is a compound from the group comprising halides of alkali metals, quaternary ammonium halides and quaternary phosphonium halides.

    摘要翻译: 本发明涉及一种制备(杂)芳族烯烃的方法,其中任选取代的烯烃在含有元素系统中第8,9或10族的金属的金属(化合物)存在下进行芳基化, 选择具有式(1)的芳基化剂的化合物:Ar-CO-YCOA,其中Ar表示任选取代的(杂)芳族基团; A表示任选取代的(杂)芳族或脂族基团,任选取代的烷氧基或芳氧基或与Ar的键; Y代表任选取代的杂原子,芳基化在卤化物存在下进行。 由于芳基化剂的使用优选由芳族羧酸酐制成,例如苯甲酸酐。 适合用作含有元素系统中第8,9或10族的金属的(金属)化合物,其为包含PdCl 2,PdBr 2,PdI 2,Na 2 PdCl 4,Na 2 PdCl 6,Pd 2(二亚苄基丙酮)3, (Ph 3 P)4 Pd,(PhCN)2 PdCl 2,Pd(OAc)2和PdSO 4。 适合用作卤化物是来自碱金属卤化物,季铵卤化物和卤化鏻的化合物。

    PROCESS FOR PRODUCING NITRILE
    54.
    发明申请
    PROCESS FOR PRODUCING NITRILE 审中-公开
    生产过程的过程

    公开(公告)号:WO1993002046A1

    公开(公告)日:1993-02-04

    申请号:PCT/JP1992000928

    申请日:1992-07-21

    发明人: KAO CORPORATION

    IPC分类号: C07C253/00

    摘要: A process for producing a nitrile represented by the general formula (1): RC=N wherein R represents alkyl, alkenyl, aralkyl or aryl each of which may be substituted, by heating an aldoxime represented by the general formula (2): RCH=NOH wherein R is as defined above, in the presence of at least one catalyst selected among hydroxides and alcoholates of alkali metals and alkaline earth metals, and distilling off water formed in the course of the reaction from the reaction system. The process enables nitriles useful as the starting material for the organic synthesis of perfumes, medicines and so forth to be produced in high yields at a remarkably reduced production cost.