Synthesis and characterization of non-chelating ruthenium–indenylidene olefin metathesis catalysts derived from substituted 1,1-diphenyl-2-propyn-1-ols
作者:Baoyi Yu、Yu Xie、Fatma B. Hamad、Karen Leus、Alex A. Lyapkov、Kristof Van Hecke、Francis Verpoort
DOI:10.1039/c4nj02034k
日期:——
Additionally, the catalytic performances of the obtained complexes 5a–d were evaluated in various metathesis reactions demonstrating that the ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROMP) reactions revealed a similar catalytic activity in comparison with the reference indenylidene catalyst 3.
我们报告的合成和表征的第一代改性的非螯合茚基钌催化剂表示为RuCl 2(4-甲基-3-(邻甲苯基)-1-茚基)(PCy 3)2 5a,RuCl 2( 3-(对氟苯基)-1-茚基)(PCy 3)2 5b,RuCl 2(3-(2,6-二甲苯基)-1-茚基)(PCy 3)2 5c和RuCl 2(3-(1 -萘基)-1-茚基)(PCy 3)2 5d。获得的5a–d的配合物通过NMR光谱和元素分析来表征。此外,5a–d的结构已通过单晶X射线衍射确认,并与标准钌茚并亚胺配合物3和螯合亚苄基配合物2进行了比较。此外,在各种复分解反应中评估了所得配合物5a-d的催化性能,表明与参考茚并亚烷基催化剂相比,闭环复分解(RCM)和开环复分解聚合(ROMP)反应显示出相似的催化活性。3。