Water-soluble palladacycles containing hydroxymethyl groups: synthesis, crystal structures and use as catalysts for amination and Suzuki coupling of reactions
作者:Xin Han、Hong-Mei Li、Chen Xu、Zhi-Qiang Xiao、Zhi-Qiang Wang、Wei-Jun Fu、Xin-Qi Hao、Mao-Ping Song
DOI:10.1007/s11243-016-0036-5
日期:2016.5
2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl(Sphos)]-palladacycles containing hydroxymethyl groups 2–3 were prepared by cyclopalladation and chloride bridge-splitting reactions. The complexes were characterized by elemental analysis, ESI–MS and NMR. In addition, single-crystal X-ray analysis reveals that they have one-dimensional lamellar structures involving intermolecular hydrogen bonds and π–π interactions
通过环钯化和氯桥分裂反应制备了两种水溶性单膦 [PPh3 和 2-二环己基膦基-2',6'-二甲氧基联苯 (Sphos)]-含羟甲基 2-3 的钯环。通过元素分析、ESI-MS 和核磁共振对配合物进行表征。此外,单晶X射线分析表明它们具有涉及分子间氢键和π-π相互作用的一维层状结构。研究了使用这些钯环作为芳基氯在水中胺化和 Suzuki 偶联的催化剂。发现配合物 3 对于这些偶联反应非常有效。此外,它还成功地用于(羟甲基)苯基硼酸的 Suzuki 偶联,以合成取代的 2-N-杂环联芳甲醇。