Process for the production of 3-cyclohexene-1-carboxaldehyde
    2.
    发明授权
    Process for the production of 3-cyclohexene-1-carboxaldehyde 失效
    3-环己烯-1-甲醛的制备方法

    公开(公告)号:US4642387A

    公开(公告)日:1987-02-10

    申请号:US813904

    申请日:1985-12-27

    CPC分类号: C07C45/69

    摘要: A continuous process for the production of 3-cyclohexene-1-carboxaldehyde by reaction of acrolein with butadiene at an elevated temperature and increased pressure is described in which good yields are obtained by establishing the weight ratio of the starting substances fed per time unit into a circulation reactor in relation to the reaction mixture circulated per time unit in the range of 1:5 to 1:60 and by carrying out a secondary reaction in successive reactors.

    摘要翻译: 描述了通过在升高的温度和增加的压力下通过丙烯醛与丁二烯的反应制备3-环己烯-1-甲醛的连续方法,其中通过将每单位时间单元进料的起始物质的重量比确定为 循环反应器相对于每单位循环的反应混合物在1:5至1:60的范围内,并通过在连续的反应器中进行二次反应。

    Process for the preparation of epoxidized polybutadienes
    6.
    发明授权
    Process for the preparation of epoxidized polybutadienes 失效
    制备环氧化聚丁二烯的方法

    公开(公告)号:US4851556A

    公开(公告)日:1989-07-25

    申请号:US163239

    申请日:1988-03-02

    IPC分类号: C08F8/00 C08C19/06 C08F8/08

    CPC分类号: C08C19/06

    摘要: Epoxidized polybutadienes with an average molecular weight of 500 to 100,000 and a certain content of epoxide oxygen were prepared from the corresponding polybutadienes with use of perpropionic acid in a benzene solution. The solution can also be employed in unpurified form with maximum contents of 1.5 weight percent hydrogen peroxide 1.5 weight percent of water, and about 800 ppm of mineral acid.

    摘要翻译: 在苯溶液中使用过丙酸从相应的聚丁二烯制备平均分子量为500至100,000的环氧化聚丁二烯和一定量的环氧化物氧。 溶液也可以非纯化形式使用,最大含量为1.5重量%过氧化氢1.5重量%的水和约800ppm的无机酸。

    Method for the isomerization of oxiranes
    7.
    发明授权
    Method for the isomerization of oxiranes 失效
    环氧乙烷异构化方法

    公开(公告)号:US4734529A

    公开(公告)日:1988-03-29

    申请号:US944071

    申请日:1986-12-22

    CPC分类号: C07C45/58

    摘要: The method for the isomerization of oxiranes of the general formula: ##STR1## wherein R.sub.1 and R.sub.3 are hydrogen; R.sub.2 is alkyl or alkylene groups of 3 to 26 carbon atoms or the phenyl group which may also be substituted, and R.sub.4 is hydrogen or alkyl from 1 to 26 carbon atoms and in which the carbon atoms of the epoxy ring can also form components of a cyclic system, wherein as a catalyst there is used alkali iodide and a polyethyleneglycol with an average mol mass of 400 to 10,000 with a boiling point, preferably above the boiling point of the carbonyl compounds that are formed.

    摘要翻译: 环烷烃的异构化方法,其通式如下:其中R1和R3是氢; R 2为3〜26个碳原子的烷基或亚烷基或可被取代的苯基,R 4为氢或1〜26个碳原子的烷基,其中环氧环的碳原子也可以形成 其中作为催化剂使用碱金属碘化物和平均摩尔质量为400至10,000的聚乙二醇,其沸点,优选高于形成的羰基化合物的沸点。