NHC钯（II）和银（I）配合物：三种类型碳-碳偶联反应中的合成、结构及催化活性
NHC Pd(II) and Ag(I) Complexes: Synthesis, Structure, and Catalytic Activity in Three Types of C-C Coupling Reactions.
作者信息
Liu Qing-Xiang, Hu Ze-Liang, Yu Shao-Cong, Zhao Zhi-Xiang, Wei Deng-Che, Li Hui-Long
机构信息
Key Laboratory of Inorganic-Organic Hybrid Functional Materials Chemistry (Tianjin Normal University), Ministry of Education, College of Chemistry and Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China.
出版信息
ACS Omega. 2018 Apr 10;3(4):4035-4047. doi: 10.1021/acsomega.8b00205. eCollection 2018 Apr 30.
Four bis-benzimidazolium salts, 1,4-bis[1'-(-R-benzimidazoliumyl)methyl]-2,3,5,6-tetramethylbenzene 2X ( : R = ethyl, X = PF; : R = picolyl, X = Br; : R = benzyl, X = Br; and : R = allyl, X = Br), and their three -heterocyclic carbene (NHC) Pd(II) and Ag(I) complexes, (), (), and (), as well as one anionic complex (), have been synthesized and characterized. Complex adopts a funnel-like type of structure, complex adopts a cyclic structure, and complex is an open structure. In the crystal packing of -, one-dimensional polymeric chains and two-dimensional supramolecular layers are formed via intermolecular weak interactions, including hydrogen bonds, π-π interactions, and C-H···π contacts. The catalytic activities of NHC Pd(II) complex in three types of C-C coupling reactions (Suzuki-Miyaura, Heck-Mizoroki, and Sonogashira reactions) were studied. The results show that this catalytic system is efficient for these C-C coupling reactions.
合成并表征了四种双苯并咪唑鎓盐，即1,4-双[1'-（-R-苯并咪唑基）甲基]-2,3,5,6-四甲基苯2X（：R = 乙基，X = PF；：R = 吡啶甲基，X = Br；：R = 苄基，X = Br；以及：R = 烯丙基，X = Br），及其三种 - 杂环卡宾（NHC）钯（II）和银（I）配合物，（），（），和（），以及一种阴离子配合物（）。配合物 采用漏斗状结构，配合物 采用环状结构，配合物 为开放结构。在 - 的晶体堆积中，通过分子间弱相互作用，包括氢键、π-π相互作用和C-H···π接触，形成了一维聚合物链和二维超分子层。研究了NHC钯（II）配合物 在三种类型的C-C偶联反应（铃木-宫浦反应、赫克-水泽反应和宗贺反应）中的催化活性。结果表明，该催化体系对这些C-C偶联反应是有效的。
Zotero 插件