Process for the preparation of 3-alkoxyacrylonitrile
    4.
    发明申请
    Process for the preparation of 3-alkoxyacrylonitrile 失效
    制备3-烷氧基丙烯腈的方法

    公开(公告)号:US20020028962A1

    公开(公告)日:2002-03-07

    申请号:US09921891

    申请日:2001-08-06

    申请人: Degussa AG

    IPC分类号: C07C253/30

    CPC分类号: C07C253/30 C07C255/15

    摘要: The present invention provides a process, which includes: preparing 3-alkoxyacrylonitrile from 3,3-dialkoxypropionitrile by catalytically eliminating alcohol from 3,3-dialkoxypropionitrile in the presence of at least one aromatic sulfonic acid catalyst and at least one high-boiling solvent. Another embodiment of the invention provides a method of producing a pharmaceutical compound, which includes the above-described process. Another embodiment of the invention provides a method of producing a cosmetic product, which includes the above-described process.

    摘要翻译: 本发明提供了一种方法,其包括:在至少一种芳族磺酸催化剂和至少一种高沸点溶剂的存在下,通过在3,3-二烷氧基丙腈中催化除去醇,由3,3-二烷氧基丙腈制备3-烷氧基丙烯腈。 本发明的另一个实施方案提供了制备药物化合物的方法,其包括上述方法。 本发明的另一个实施方案提供了一种生产化妆品的方法,其包括上述方法。

    Stabilization method of vinyl compound with hydroxy group and
composition containing such vinyl compound
    5.
    发明授权
    Stabilization method of vinyl compound with hydroxy group and composition containing such vinyl compound 失效
    具有羟基的乙烯基化合物的稳定化方法和含有这种乙烯基化合物的组合物

    公开(公告)号:US5760278A

    公开(公告)日:1998-06-02

    申请号:US711206

    申请日:1996-09-09

    摘要: A stabilization method of a vinyl compound with hydroxy group of an improved stability is achieved by preventing it from being denatured on storage, transportation, manufacturing process while maintaining its reactivity. A composition containing the vinyl compound with hydroxy group of an improved stability is obtained by the described stabilization method. The stabilization method is characterized by coexisting a vinyl compound with hydroxy group of formula (1), a primary antioxidant, alcohol and/or water, ##STR1## wherein R is a hydrogen atom or an organic residue, X is a --CN group, a --COR.sub.0 group or a --COOR.sub.0 group, and R.sub.0 is a hydrogen atom or an organic residue. In this stabilization method, not less than 50 ppm of alcohol and/or water is added with respect to the vinyl compound with hydroxy group. The stabilization method may be achieved by coexisting the above-defined vinyl compound with hydroxy group, the primary antioxidant and organic acid. In this case, not less than 10 ppm of organic acid is added to the vinyl compound with hydroxy group.

    摘要翻译: 通过防止在保存其反应性的同时在储存,运输,制造过程中变性而实现具有改善的稳定性的具有羟基的乙烯基化合物的稳定方法。 通过所述的稳定化方法可获得含有具有改进的稳定性的羟基的乙烯基化合物的组合物。 稳定化方法的特征在于将乙烯基化合物与式(1)的羟基,主要抗氧化剂,醇和/或水共存,其中R是氢原子或有机残基,X是 - CN基团,-COR0基团或-COOR0基团,R0为氢原子或有机残基。 在该稳定化方法中,相对于具有羟基的乙烯基化合物,不少于50ppm的醇和/或水被添加。 稳定化方法可以通过将上述定义的乙烯基化合物与羟基,主要抗氧化剂和有机酸共存来实现。 在这种情况下,向具有羟基的乙烯基化合物中加入不少于10ppm的有机酸。

    Highly-conductive copper extractant formulations
    8.
    发明申请
    Highly-conductive copper extractant formulations 失效
    高导电铜萃取剂配方

    公开(公告)号:US20080035893A1

    公开(公告)日:2008-02-14

    申请号:US11827630

    申请日:2007-07-12

    摘要: A method of creating solvent extraction reagent formulations that have high conductivity by combining (a) phenolic oxime extraction reagent(s) or other extraction reagent(s) in the organic phase of a solvent extraction circuit of a metal recovery operation, comprising combining the phenolic oxime extraction reagent(s) or other reagent(s) with one or more ketone, nitrile and/or amide compounds, or mixtures thereof, to create an extraction reagent formulation with a conductivity of at least 4,000 pS/m, measured according to the provisions of BS 5958 Part I, as well as a method of creating an organic phase that has a high conductivity, preferably a conductivity of at least 250 pS/m, comprising adding to that organic phase in an extraction circuit a phenolic oxime extraction reagent formulation with one or more ketoxime, aldoxime, mixtures thereof, or one or more other extraction reagents, and one or more ketone, nitrile, or amide compounds, or mixture thereof, and novel ketone, nitrile and amide compounds.

    摘要翻译: 一种通过在(a)酚类肟萃取剂或其它萃取剂在金属回收操作的溶剂萃取回路的有机相中组合(a)酚醛肟萃取剂或其它萃取剂来制备具有高导电性的溶剂萃取剂制剂的方法, 肟提取试剂或其他试剂与一种或多种酮,腈和/或酰胺化合物或其混合物,以产生具有至少4,000pS / m的电导率的提取试剂制剂,根据 BS 5958第I部分的规定,以及产生具有高导电性,优选至少250pS / m 2的电导率的有机相的方法,包括向萃取回路中的该有机相添加酚肟萃取试剂配方 与一种或多种酮肟,醛肟,其混合物或一种或多种其它提取试剂和一种或多种酮,腈或酰胺化合物或其混合物,以及新的酮,腈 d酰胺化合物。

    Radical polymerizable compound
    10.
    发明申请
    Radical polymerizable compound 失效
    可自由基聚合的化合物

    公开(公告)号:US20030008996A1

    公开(公告)日:2003-01-09

    申请号:US10096879

    申请日:2002-03-14

    发明人: Kazuto Kunita

    IPC分类号: C08F020/42 C07D207/30

    摘要: A radical polymerizable compound comprising a structure represented by the following formula (I), (II) or (III): 1 wherein X3 represents a heterocyclic group that is connected through a hetero atom included therein; Q1 represents a group represented by CN or COX2; X2 represents a hydroxy group, a substituted oxy group, a substituted thio group, an amino group, a substituted amino group, a heterocyclic group that is connected through a hetero atom included therein or a halogen atom; X1 represents a substituted oxy group, a substituted amino group, a heterocyclic group that is connected through a hetero atom included therein or a halogen atom; Z1 and Z2 each represents a n-valent connecting group having at least 6 carbon atoms, in which the n's connecting parts are all hetero atoms; Ra and Rb, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group or an organic residue; or Ra and Rb, X1 and Ra or Rb, X3 and Ra or Rb, or Q1 and Ra or Rb may combine with each other to form a cyclic structure; and n represents an integer of from 2 to 6.

    摘要翻译: 一种可自由基聚合的化合物,其包含由下式(I),(II)或(III)表示的结构:其中,X3表示通过其中包含的杂原子连接的杂环基; Q1表示由CN或COX2表示的基团; X 2表示羟基,取代的氧基,取代的硫基,氨基,取代的氨基,通过其中包含的杂原子连接的杂环基或卤素原子; X1表示取代的氧基,取代的氨基,通过其中包含的杂原子连接的杂环基或卤素原子; Z1和Z2各自表示具有至少6个碳原子的n价连接基团,其中n个连接部分都是杂原子; R a和R b可以相同或不同,表示氢原子,卤原子,氰基或有机残基; 或Ra和Rb,X1和Ra或Rb,X3和Ra或Rb,或Q1和Ra或Rb可以相互结合形成环状结构; n表示2〜6的整数。