Producing cyclohexene or alkylcyclohexene
    3.
    发明授权
    Producing cyclohexene or alkylcyclohexene 失效
    生产环己烯或烷基环己烯

    公开(公告)号:US4356337A

    公开(公告)日:1982-10-26

    申请号:US317626

    申请日:1981-11-02

    IPC分类号: C07C5/11 C07C5/00

    CPC分类号: C07C5/11 C07C2101/16

    摘要: Benzene or an alkylbenzene is reacted with hydrogen and an alkali metal such as potassium in the presence of a polyamine to produce cyclohexene or alkylcyclohexene and alkali metal hydride. The polyamine contains only C, N and H and has at least three nitrogens. Each nitrogen is linked to three carbons and each carbon bridge is at least two methylenes long. Representative polyamines are hexamethyl hexacyclen, hexamethyl triethylene tetraamine, tris(2-dimethylamino ethyl)amine and octamethyl pentaethylene hexamine. Cyclohexene is produced at high ratios with respect to cyclohexane.

    摘要翻译: 在多胺的存在下,使苯或烷基苯与氢和碱金属如钾反应生成环己烯或烷基环己烯和碱金属氢化物。 多胺仅含有C,N和H,并且具有至少三个氮。 每个氮与三个碳相连,每个碳桥至少有两个亚甲基长。 代表性的多胺是六甲基六环,六甲基三亚乙基四胺,三(2-二甲基氨基乙基)胺和八甲基五亚乙基六胺。 相对于环己烷,环己烯的产率高。

    Electrochemical synthesis of organic carbonates
    4.
    发明授权
    Electrochemical synthesis of organic carbonates 失效
    电化学合成有机碳酸酯

    公开(公告)号:US4131521A

    公开(公告)日:1978-12-26

    申请号:US848976

    申请日:1977-11-07

    IPC分类号: C25B3/02

    CPC分类号: C25B3/02

    摘要: A process is described for the electrochemical synthesis of organic carbonates, such as dimethyl carbonate and ethylene carbonate, useful as industrial solvents for polymers and resins, which comprises electrolyzing a liquid medium containing a nonfluoride halide-containing electrolyte and a paraffinic monohydric or 1,2-dihydric alcohol. The non-fluoride halide-containing electrolyte is present in an amount of about 0.01 to 10 weight percent of the alcohol used, and the electrolysis is conducted by passing a direct current through the liquid medium at a temperature below its boiling point and under a carbon monoxide atmosphere at a pressure of about 1 to 350 atmospheres.

    摘要翻译: 描述了用于电化学合成有机碳酸酯的方法,例如用作聚合物和树脂的工业溶剂的碳酸二甲酯和碳酸亚乙酯,其包括电解含有含氟化物卤化物的电解质和链烷烃一元或1,2- - 二元醇。 非氟化物卤化物的电解质的存在量为所使用的醇的约0.01至10重量%,并且电解是通过使液体介质在低于其沸点的温度下通过液体介质并在碳 在约1至350大气压的压力下产生一氧化碳气氛。