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以1,3-双(2,6-二异丙基苯基)咪唑鎓盐酸盐(IPrHCl,4a)或1,3-双[2,6-二(1-乙基丙基)苯基]咪唑鎓盐酸盐(IPent· HCl,5a),及Grubbs 第一代催化剂和2-异丙氧基苯乙烯为原料,经去质子化反应和烯烃复分解反应合成了两种新型的NHC-钌催化剂4c和5c,其结构经1H NMR, 13C NMR和HR-MS(ESI)表征.并研究了4c和5c的性能.结果表明:4c和5c的稳定性较好,对关环复分解反应有良好的催化活性.“,”Using 1,3-bis(2,6-diisopropylphenyl)-imidazolidinium chloride(IPrHCl,4a), or 1,3-bis [2,6-bis(1-ethylpropyl)phenyl]imidazolium chloride(IPentHCl,5a),Grubbs first generation catalyst and 1-isopropoxy-2-vinylbenzene as raw materials, two novel NHC-ruthenium complexes(4c, IPrRuCl2)and(5c, IPentRuCl2)were synthesized via deprotonation and olefin metathesis reaction. The structures were characterized by 1H NMR, 13C NMR and HR-MS(ESI).And the properties of 4c and 5c were investigated as well.The results showed that 4c and 5c exhibited high catalytic activity at low dosage with fast initiation rate and high stability in ring-closing metathesis reaction.