Metathesis of renewable polyene feedstocks – Indirect evidences of the formation of catalytically active ruthenium allylidene species
作者:Ervin Kovács、Péter Sághy、Gábor Turczel、Imre Tóth、György Lendvay、Attila Domján、Paul T. Anastas、Róbert Tuba
DOI:10.1016/j.jorganchem.2017.04.018
日期:2017.10
conversions and reasonable yields. Thus, regardless of the relatively low electron density, =CH–CH= conjugated units of molecules, including compound 2 as a sustainable, non-foodstuff source, can be utilized as building blocks for the synthesis of various value-added chemicals via olefin metathesis. DFT-studies and the product spectrum of the self-metathesis of 1,6-diphenyl-1,3,5-hexatriene suggest
共轭多烯(例如1,6-二苯基-1,3,5-己三烯(1)和α-硬脂酸甲酯(2))与几种烯烃的交叉复分解(CM),包括1-己烯,马来酸二甲酯和使用(1,3-双-(2,4,6-三甲基苯基)-2-咪唑啉亚叉基)-二氯(邻异丙氧基苯基亚甲基)钌(Hoveyda-Grubbs第二代,HG2)催化剂进行了顺式-苯乙烯化合物的模型研究。通过观察到的高转化率和合理的产率证明了这些反应的可行性。因此,不管相对较低的电子密度,= CH–CH =分子的共轭单元,包括化合物2作为一种可持续的非食品来源,可以用作通过烯烃复分解合成各种增值化学品的基础。DFT-研究和的自复分解的产物谱1,6-二苯基-1,3,5-己三烯表明,由Ruη 1种-allylidene复合物是在反应的活性种。