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    Preparation of α,β-ethylenically unsaturated carboxylic salts by catalytic carboxylation of alkenes
    4.
    发明授权
    Preparation of α,β-ethylenically unsaturated carboxylic salts by catalytic carboxylation of alkenes 有权
    通过烯烃的催化羧化制备α，β-烯属不饱和羧酸盐

    公开(公告)号：US08697909B2

    公开(公告)日：2014-04-15

    申请号：US13728081

    申请日：2012-12-27

    申请人： BASF SE

    发明人： Michael Limbach ,  Ronald Lindner ,  Michael Ludwik Lejkowski ,  Takeharu Kageyama ,  Gabriella Eva Bodizs ,  Stephan Schunk ,  Cornelia Futter ,  Jörg Rother

    IPC分类号： C07C51/15

    CPC分类号： C07C51/41 ,  C07F15/04 ,  C07C57/04

    摘要： In a process for preparing an alkali metal or alkaline earth metal salt of an α,β-ethylenically unsaturated carboxylic acid, a) a transition metal-alkene complex is reacted with CO2 to give a metallalactone, b) the metallalactone is reacted with a base to give an adduct of the alkali metal or alkaline earth metal salt of the α,β-ethylenically unsaturated carboxylic acid with the transition metal complex, and c) the adduct is reacted with an alkene to release the alkali metal or alkaline earth metal salt of the α,β-ethylenically unsaturated carboxylic acid and regenerate the transition metal-alkene complex. The base is selected from alkali metal or alkaline earth metal hydroxides and alkali metal or alkaline earth metal superbases. The alkene is, for example, ethene. The transition metal complex comprises, for example, nickel and a bidentate P,P, P,N, P,O or P,carbene ligand, such as 1,2-bis(di-tert-butylphosphino)ethane.

    摘要翻译： 在制备α，β-烯属不饱和羧酸的碱金属或碱土金属盐的方法中，a）过渡金属 - 烯烃络合物与CO 2反应得到金属内酯，b）金属内酯与 得到α，β-烯属不饱和羧酸的碱金属或碱土金属盐与过渡金属络合物的加合物，和c）加合物与烯烃反应以释放碱金属或碱土金属 α和β-烯属不饱和羧酸的盐，并再生过渡金属 - 烯烃络合物。 碱选自碱金属或碱土金属的氢氧化物和碱金属或碱土金属的高碱性物质。 烯烃是例如乙烯。 过渡金属络合物包括例如镍和二齿P，P，P，N，P，O或P，卡宾配体，例如1,2-双（二叔丁基膦基）乙烷。