The review summarizes literature data on the methods for the introduction of fluorine atoms and fluoralkyl groups into different ligands to construct metathesis-active ruthenium carbene complexes. It also analyzes the influence of fluorinated ligands on the catalytic activity of the complexes. The choice, structure and positions of fluorinated substituents in NHC ligands are generally dictated by the desire to increase the electrophilicity of the ruthenium atom due to the electron-withdrawing effect of fluorine atoms and fluoroalkyl groups, resulting, as a rule, in an increase in the activity of the ruthenium complex. In catalysts with unsymmetrical fluorine-containing NHC ligands, there is a possibility of additional Ru–F coordination, making the complexes much more stable and, consequently, more active. The presence of fluorine in chelating alkylidene ligands provides an increase in the catalyst initiation rate due to a weakening of the ruthenium – heteroatom bond. Besides, the introduction of polyfluoroalkyl groups into ligands solves the problem of catalyst recovery using fluorous biphasic systems for reuse.

The bibliography includes 172 references.

该综述总结了将氟原子和氟烷基引入不同配体以构建复分解活性钌卡宾配合物的方法的文献数据。它还分析了氟化配体对配合物催化活性的影响。由于氟原子和氟烷基的吸电子效应，NHC 配体中氟化取代基的选择、结构和位置通常取决于提高钌原子亲电性的愿望，通常导致钌配合物的活性。在具有不对称含氟 NHC 配体的催化剂中，可能存在额外的 Ru-F 配位，使配合物更加稳定，因此更加活跃。由于钌-杂原子键的减弱，在螯合亚烷基配体中氟的存在提供了催化剂引发速率的增加。此外，将多氟烷基引入配体解决了使用含氟双相系统进行再利用的催化剂回收问题。

参考书目包括 172 篇参考文献。