Cycloruthenation of
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‐(Naphthyl)salicylaldimine and Related Ligands: Utilization of the Ru–C Bond in Catalytic Transfer Hydrogenation
作者:Jayita Dutta、Michael G. Richmond、Samaresh Bhattacharya
DOI:10.1002/ejic.201402236
日期:2014.9
Upon reaction with [Ru(PPh3)2(CO)2Cl2], N-(naphthyl)-4-R-salicylaldimines (R = OCH3, H, Cl; H2L1–H2L3) and 2-hydroxy-N-(naphthyl)naphthaldimine (H2L4) readily undergo cycloruthenation by C–H bond activation at the peri position to afford complexes of the type [Ru(PPh3)2(L)(CO)] (L = L1–L4). The crystal structures of the [Ru(PPh3)2(L)(CO)] (L = L1, L2, L4) complexes were determined and the structure
与 [Ru(PPh3)2(CO)2Cl2] 反应后,N-(萘基)-4-R-水杨醛亚胺 (R = OCH3, H, Cl; H2L1–H2L3) 和 2-羟基-N-(萘基)萘二甲胺(H2L4) 很容易通过在周围位置的 C-H 键活化进行环钌化,以提供 [Ru(PPh3)2(L)(CO)] 类型的配合物(L = L1-L4)。确定了 [Ru(PPh3)2(L)(CO)] (L = L1, L2, L4) 配合物的晶体结构,并通过 DFT 优化了 [Ru(PPh3)2(L3)(CO)] 的结构计算。确定了 [Ru(PPh3)2(CO)2Cl2] 与 H2L2 反应生成 [Ru(PPh3)2(L2)(CO)] 的热力学。所有配合物在可见光和紫外光区域都显示出强烈的吸收,这已经通过 TDDFT 计算进行了分析。四种环钌配合物的循环伏安法显示,相对于 SCE,在 0.50–1.35 V 范围内的两种氧化和相对于