Preparation of cyclododecatriene
    1.
    发明授权
    Preparation of cyclododecatriene 失效
    环十二碳三烯的制备

    公开(公告)号:US3878258A

    公开(公告)日:1975-04-15

    申请号:US48781274

    申请日:1974-07-11

    Applicant: DU PONT

    Abstract: Process for preparing 1,5,9-cyclododecatriene by contacting butadiene with a catalyst system resulting from the mixing of an aluminum composition of the structure Z(2.5 3.5)Al2Cl(3.5 2.5) wherein Z is selected from the group consisting of alkyl radicals containing from 2 to 4 carbon atoms and the phenyl radical; a titanium compound of the formula TiA4 wherein A is selected from the class consisting of Cl, Br, I and OR wherein R is an organic radical of from 1 to 20 carbon atoms; and a promoter for the catalyst system wherein the promoter is selected from the group consisting of water, oxygen and oxygen-containing organic compounds, at a temperature in the range of 20* to 120*C. and at a pressure of 0.5 to 50 atmospheres and recovering cyclododecatriene-1,5,9 along with by-products 1,5-cyclooctadiene and 4-vinylcyclohexene, the improvement which comprises adding an iodide-containing composition or compound selected from the group consisting of Z(2.5 3.5)Al2I(3.5 2.5), Z2AlI, ZAlI2, and I2 wherein Z is selected from the group consisting of alkyl radicals containing from 2 to 4 carbon atoms and the phenyl radical, the molar ratio of iodine or iodide-containing composition or compound to aluminum composition being in the range of 0.05:10 to 5:10.

    Abstract translation: 通过使丁二烯与由Z(2.5-3.5)Al 2 Cl(3.5-2.5)结构的铝组合物混合而得到的催化剂体系制备1,5,9-环十二碳三烯的方法,其中Z选自烷基 含有2至4个碳原子的基团和苯基; 式TiA 4的钛化合物,其中A选自Cl,Br,I和OR,其中R是1至20个碳原子的有机基团; 和催化剂体系的助催化剂,其中助催化剂选自水,氧和含氧有机化合物,温度范围为20-120℃,压力为0.5至50大气压 并且与副产物1,5-环辛二烯和4-乙烯基环己烯一起回收环十二碳三烯-1,5,9,其改进包括加入选自Z(2.5-3.5)Al 2 I的含碘化物的组合物或化合物 3.5-2.5),Z2AlI,ZAlI2和I2,其中Z选自含有2至4个碳原子的烷基和苯基,碘或含碘化合物或化合物与铝组成的摩尔比为 在0.05:10至5:10的范围内。

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