Dimethyl sulfoxide ruthenium(II) complexes of N-heterocyclic carbenes derived from cycloalkylamines (cycloalkyl = cyclopentyl (1a), cyclohexyl (1b), cycloheptyl (1c), and cyclooctyl (1d)) were synthesized: [RuCl₂(S-dmso)₂(IPent)] (2a), [RuCl₂(S-dmso)₂(IHex)] (2b), [RuCl₂(S-dmso)₂(IHept)] (2c), and [RuCl₂(S-dmso)₂(IOct)] (2d). The imidazolium salts 1a-1d were characterized by FTIR, UV–vis, and ¹H and ¹³C NMR spectroscopy, while their respective dimethyl sulfoxide ruthenium(II) complexes (2a-2d) were characterized by elemental analysis, FTIR, UV–vis, ¹H and ¹³C NMR, and cyclic voltammetry. The complexes 2a-2d were evaluated as catalytic precursors for ROMP of norbornene (NBE) and for ATRP of methyl methacrylate (MMA). The polynorbornene (polyNBE) syntheses via ROMP using the complexes 2a-2d as pre-catalysts were evaluated under reaction conditions of [EDA]/[Ru] = 28 (5 μL), [NBE]/[Ru] = 5000 at 50 °C as a function of time. The polymerization of MMA via ATRP was conducted using the complexes 2a-2d in the presence of ethyl 2-bromoisobutyrate (EBiB) as the initiator. All tests were using the molar ratio [MMA]/[EBiB]/[Ru] = 1000/2/1 and conducted at 85 °C. The linear correlation of ln([MMA]₀/[MMA]) and time clearly indicates that the concentration of radicals remains constant during the polymerization and that the ATRP of MMA mediated by 2a-2d proceeds in a controlled manner.

合成了环烷基胺（环烷基=环戊基（1a），环己基（1b），环庚基（1c）和环辛基（1d））的N-杂环卡宾的二甲基亚砜钌（II）配合物：[RuCl ₂（S-dmso）₂（IPent）]（2a），[RuCl ₂（S-dmso）₂（IHex）]（2b），[RuCl ₂（S-dmso）₂（IHept）]（2c）和[RuCl ₂（S- dmso）₂（IOct）]（2d）。咪唑鎓盐1a - 1d用FTIR，UV-vis和¹ H和¹³ C NMR光谱表征，而它们各自的二甲基亚砜钌（II）配合物（2a - 2d）用元素分析，FTIR，UV-vis，¹ H和¹³ C表征。NMR和循环伏安法。评价了络合物2a - 2d作为降冰片烯ROMP（NBE）和甲基丙烯酸甲酯（MMA）ATRP的催化前体。使用配合物2a - 2d通过ROMP合成聚降冰片烯（polyNBE）在[EDA] / [Ru] = 28（5μL），[NBE] / [Ru] = 5000的反应条件下，于50°C的条件下，对前催化剂的反应时间进行了评估。在2-溴异丁酸乙酯（EB i B）作为引发剂的情况下，使用配合物2a - 2d通过ATRP进行MMA聚合。所有测试均使用摩尔比[MMA] / [EB i B] / [Ru] = 1000/2/1并在85°C下进行。ln（[MMA] ₀ / [MMA]）和时间的线性关系清楚地表明，自由基的浓度在聚合过程中保持恒定，并且由2a - 2d介导的MMA的ATRP以受控方式进行。