METHODS, COMPOSITIONS, AND APPARATUSES FOR FORMING MACROCYCLIC COMPOUNDS
    4.
    发明申请
    METHODS, COMPOSITIONS, AND APPARATUSES FOR FORMING MACROCYCLIC COMPOUNDS 审中-公开
    用于形成大环化合物的方法,组合物和装置

    公开(公告)号:US20120157658A1

    公开(公告)日:2012-06-21

    申请号:US13291742

    申请日:2011-11-08

    CPC classification number: C07D291/08 C07D313/00 C07D323/00

    Abstract: This invention relates to methods, compositions, and apparatuses for producing macrocyclic compounds. First, one or more reactants are provided in a reaction medium, which are capable of forming the macrocyclic compound through a desired reaction pathway that includes at least cyclization, and which are further capable of forming undesired oligomers through a undesired reaction pathway that includes undesirable oligomerization. Oligomerization of such reactions in the reaction medium is modulated to reduce formation of undesired oligomers and/or to reduce separation of the undesired oligomers from the reaction medium, relative to a corresponding unmodulated oligomerization reaction, thereby maximizing yields of the macrocyclic compound. The macrocyclic compound so formed is then recovered from the reaction medium. Preferably, the macrocyclic compound spontaneously separates from the reaction medium via phase separation. More preferably, the macrocyclic compound spontaneous precipitates from the reaction medium and therefore can be easily recovered by simple filtration.

    Abstract translation: 本发明涉及生产大环化合物的方法,组合物和装置。 首先,在反应介质中提供一种或多种反应物,其能够通过包含至少环化的所需反应途径形成大环化合物,并且还能够通过不期望的反应途径形成不期望的低聚物,所述反应途径包括不期望的低聚反应 。 相对于相应的未调节的低聚反应,调节反应介质中这种反应的低聚反应以减少不需要的低聚物的形成和/或减少不需要的低聚物与反应介质的分离,从而最大化大环化合物的产率。 然后从反应介质中回收如此形成的大环化合物。 优选地,大环化合物通过相分离从反应介质自发分离。 更优选地,大环化合物从反应介质中自发沉淀,因此可以通过简单的过滤容易地回收。

    Fluid for traction drive
    5.
    发明授权
    Fluid for traction drive 失效
    用于牵引驱动的流体

    公开(公告)号:US4704490A

    公开(公告)日:1987-11-03

    申请号:US594

    申请日:1987-01-06

    Abstract: The fluid for traction drive containing:(A) an alkane derivative having at least three cyclohexane rings in a molecule; and(B) an alkane derivative having a main chain of two or three carbon atoms, to which at least two methyl groups are bonded, and having two cyclohexane rings in a molecule each bonded to one of the terminal carbon atoms of the alkane, or a cyclopentane derivative having two cyclohexane rings in a molecule, and which has a kinematic viscosity of at least 3 centistokes at 100.degree. C.The fluid has a high traction coefficient with stability over a wide range of temperature.

    Abstract translation: 用于牵引驱动的流体包含:(A)在分子中具有至少三个环己烷环的烷烃衍生物; 和(B)具有两个或三个碳原子的主链的烷烃衍生物,其中键合有至少两个甲基,并且在分子中具有两个分别与烷烃的末端碳原子键合的环己烷环,或 在分子中具有两个环己烷环的环戊烷衍生物,其运动粘度在100℃下至少为3厘沲。该流体具有高牵引系数,在宽的温度范围内具有稳定性。

    Oxidative coupling of aromatic methyl groups
    6.
    发明授权
    Oxidative coupling of aromatic methyl groups 失效
    芳香族甲基的氧化偶联

    公开(公告)号:US4400567A

    公开(公告)日:1983-08-23

    申请号:US419751

    申请日:1982-09-20

    CPC classification number: C07C2/82

    Abstract: Highly selective oxidative coupling of aromatic methyl groups, such as coupling toluene to DPE, is effected under mild, liquid phase conditions with a peroxodisulfate without expensive metal ion catalysts, in presence of substantial amounts, preferably equimolar, of methyl, ethyl or benzyl substituted quaternary ammonium salts. A continuous process is possible by electrolytic regeneration of the spent oxidant.

    Abstract translation: 芳香族甲基的高度选择性氧化偶联,例如将甲苯偶联至DPE,在温和的液相条件下与无需贵金属离子催化剂的过二硫酸盐在大量(优选等摩尔)甲基,乙基或苄基取代的季铵盐存在下进行 铵盐。 通过废氧化剂的电解再生可以进行连续的处理。

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