Method for production of fluorine-containing aromatic compounds
    2.
    发明授权
    Method for production of fluorine-containing aromatic compounds 失效
    含氟芳香族化合物的制造方法

    公开(公告)号:US6043397A

    公开(公告)日:2000-03-28

    申请号:US139422

    申请日:1998-08-25

    摘要: A method for the production of a fluorine-containing aromatic compound is provided which allows the relevant reaction to proceed in a standard reaction vessel such as, for example, a glass vessel at room temperature under an ambient pressure without requiring provision of such special devices as have been necessary heretofore or adoption of harsh reaction conditions. This method comprises causing an aromatic compound (A) having a cyclic skeletal part of 6 to 16 carbon atoms containing a plurality of --C(.dbd.O)X groups, wherein X stands for a hydrogen atom, a halogen atom, or an alkyl group of 1 to 10 carbon atoms, and having the remaining hydrogen atoms unsubstituted or partly or wholly substituted with at least one species of halogen atom to react with a compound (B) represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently stand for an alkyl group of 1 to 6 carbon atoms or a phenyl group.

    摘要翻译: 提供了一种制备含氟芳族化合物的方法,其允许相关反应在标准反应容器例如玻璃容器中在室温下在环境压力下进行,而不需要提供如 迄今为止还是采用了苛刻的反应条件。 该方法包括使具有6〜16个碳原子的环状骨架部分的芳香族化合物(A)含有多个-C(= O)X基团,其中X表示氢原子,卤素原子或烷基 具有1至10个碳原子,并且其余的氢原子未被取代或部分或全部被至少一种卤素原子取代,以与由下式表示的化合物(B)反应:其中R1和R2独立地表示烷基 1至6个碳原子或苯基。

    Preparation of aromatic aldehydes
    8.
    发明授权
    Preparation of aromatic aldehydes 失效
    芳香醛的制备

    公开(公告)号:US4942240A

    公开(公告)日:1990-07-17

    申请号:US43363

    申请日:1987-04-28

    摘要: Aromatic aldehydes are more rapidly produced by reacting hydrogen/carbon monoxide admixture with an aromatic halide in the presence of a noble metal-based catalyst, a tertiary nitrogenous base and, if necessary, a noble metal complexing agent, e.g., a phosphine or phosphite, wherein the concentration of said tertiary nitrogenous base, expressed in moles per liter of reaction mixture, is maintained at a value of at least two moles/liter over the course of the reaction.

    摘要翻译: 在贵金属基催化剂,叔氮碱和必要时,贵金属络合剂如磷化氢或亚磷酸盐存在下,使氢/一氧化碳混合物与芳族卤化物反应,可以更快地制备芳族醛, 其中所述叔氮碱的浓度以每升反应混合物的摩尔数表示,在反应过程中保持在至少两摩尔/升的值。