[EN] Z-SELECTIVE METATHESIS CATALYSTS<br/>[FR] CATALYSEURS DE MÉTATHÈSE SÉLECTIFS POUR Z
申请人:CALIFORNIA INST OF TECHN
公开号:WO2014093687A1
公开(公告)日:2014-06-19
A novel chelated ruthenium-based metathesis catalyst bearing an N-2,6- diisopropylphenyl group is reported and displays near-perfect selectivity for the Z-olefin (>95%), as well as unparalleled TONs of up to 7,400, in a variety of homodimerization and industrially relevant metathesis reactions. This derivative and other new catalytically-active species were synthesized using an improved method employing sodium carboxylates to induce the salt metathesis and C-H activation of these chelated complexes. All of these new ruthenium-based catalysts are highly Z-selective in the homodimerization of terminal olefins.
报告了一种含有N-2,6-二异丙基苯基团的新型螯合钌基烯烃复分解催化剂,该催化剂在多种同二聚和工业相关复分解反应中表现出对Z-烯烃的高选择性(>95%),并且具有无与伦比的转化数(TONs)高达7,400。使用改进的方法合成了这种衍生物和其他新的催化活性物种,该方法使用钠羧酸盐诱导这些螯合配合物的盐复分解和C-H活化。所有这些新的钌基催化剂在端烯烃的同二聚反应中都具有高度Z选择性。