Method of preparing di-organo-magnesium compounds
    7.
    发明授权
    Method of preparing di-organo-magnesium compounds 失效
    二有机镁化合物的制备方法

    公开(公告)号:US4329301A

    公开(公告)日:1982-05-11

    申请号:US123157

    申请日:1980-02-21

    CPC分类号: C07F3/02

    摘要: A method of preparing a di-organo-magnesium compound of the formula R.sub.2 M.sub.g in which R is an organic radical bonded to Mg by carbon, comprising reacting magnesium hydride MgH.sub.2 or magnesium and hydrogen with an olefin in the presence of a catalyst comprising a compound of a transition metal of the 4th to 8th secondary group and an organometallic compound or a hydride of a metal of the 1st to 3rd principal groups of the periodic system. Advantageously there is also present a polycyclic aromatic compound or a tertiary amine as activator and the reaction is effected in the presence of tetrahydrofuran as solvent at a pressure of about 1 to 300 bars at about 0.degree. to 200.degree. C., the atomic ratio of Mg:transition metal being from about 10.sup.4 to 10:1, the molar ratio of transition metal compound:organometal compound or metal hydride being from about 0.1 to 10:1, the molar ratio of olefin:magnesium being from about 2 to 10:1 and the olefin being of the formula CH.sub.2 .dbd.CHR' wherein R' is H or an alkyl, cyclo-alkyl, aryl or aralkyl group.

    摘要翻译: 一种制备式R2Mg的二有机镁化合物的方法,其中R是通过碳与Mg键合的有机基团,包括使氢化镁MgH 2或镁与氢与烯烃在催化剂存在下反应,所述催化剂包含 第4至第8次级基团的过渡金属和周期系的第1至第3主族金属的有机金属化合物或氢化物。 有利地,还存在多环芳族化合物或叔胺作为活化剂,并且该反应在四氢呋喃作为溶剂存在下,在约1至300巴的压力下在约0至200℃下进行,原子比 Mg:过渡金属为约104〜10:1,过渡金属化合物:有机金属化合物或金属氢化物的摩尔比为约0.1〜10:1,烯烃:镁的摩尔比为约2〜10:1 并且所述烯烃为式CH 2 = CHR',其中R'为H或烷基,环烷基,芳基或芳烷基。