Preparation of p-cymene and homologous alkylbenzenes
    31.
    发明授权
    Preparation of p-cymene and homologous alkylbenzenes 失效
    对甲基异丙苯和同系烷基苯的制备

    公开(公告)号:US4720603A

    公开(公告)日:1988-01-19

    申请号:US16941

    申请日:1987-02-20

    CPC分类号: C07C5/367

    摘要: Alkylbenzenes of the general formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl, preferably methyl, and R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, preferably methyl, are prepared by catalytic aromatization of the corresponding alkenylcyclohexenes of the general formula II ##STR2## by carrying out the conversion in the gas phase at 150.degree.-400.degree. C. over a catalyst which contains palladium oxide and sulfur and/or selenium or selenium oxide on active carbon.

    摘要翻译: 通式Ⅰ的烷基苯,其中R 1是C 1 -C 4烷基,优选甲基,R 2是氢或C 1 -C 4烷基,优选甲基,是通过一般的相应烯基环己烯的催化芳构化制备的 通过在活性炭上在含有氧化钯和硫和/或硒或氧化硒的催化剂上,在150-400℃的气相中进行转化,得到式II的化合物(II)。