Abstract The interaction of the benzimidazolium salt with Ag2O in dichloromethane to prepare novel Ag(I)-N-heterocyclic carbene complexes has been carried out at room temperature for 48 h in the absence of light. The obtained complexes were identified and characterized by 1H and 13C NMR, FT-IR and elemental analysis techniques. In addition, it has been found that some of the complexes are antimicrobially
Preparation and characterization of PEPPSI-palladium <i>N</i>-heterocyclic carbene complexes using benzimidazolium salts catalyzed Suzuki–Miyaura cross coupling reaction and their antitumor and antimicrobial activities
Abstract New palladium complexes were efficiently synthesized from the reaction of benzimidazolium salts 2a–e, potassium carbonate (K2CO3) and palladium chloride (PdCl2) in pyridine (for 3a–e). The catalytic activity of these complexes in a catalytic system including palladium complexes and K2CO3 in DMF-H2O was evaluated in Suzuki–Miyaura cross-coupling reactions of aryl bromides and chlorides with
In situ palladium/N-heterocyclic carbene complex catalyzed carbonylative cross-coupling reactions of arylboronic acids with 2-bromopyridine under CO pressure: efficient synthesis of unsymmetrical arylpyridine ketones and their antimicrobial activities
作者:L. Boubakri、Abdullah S. Al-Ayed、L. Mansour、A. A. Harrath、J. Al-Tamimi、I. Özdemir、S. Yasar、N. Hamdi
DOI:10.1007/s11243-018-00298-9
日期:2019.5
The carbonylative Suzukicross-coupling of 2-bromopyridine with various boronicacids to prepare unsymmetrical arylpyridine ketones has been carried out using palladium/N-heterocyclic carbene complexes as catalysts prepared in situ. The selectivity and the rate of these reactions are highly dependent on the conditions, i.e., nature of the palladium catalyst precursor, solvent, temperature and CO pressure
使用钯/N-杂环卡宾配合物作为原位制备的催化剂,2-溴吡啶与各种硼酸的羰基化铃木交叉偶联制备不对称芳基吡啶酮。这些反应的选择性和速率高度依赖于条件,即钯催化剂前体的性质、溶剂、温度和 CO 压力。主要的副产品来自直接的非羰基化交叉偶联。在最佳条件下,芳基吡啶酮以高收率(60-88%)回收。使用琼脂稀释程序测试了相应的苯并咪唑盐 2 对革兰氏阳性和阴性细菌的抗菌活性,并确定了它们的 IC50 值。
N-alkylbenzimidazole silver(I) complexes: Synthesis, biological evaluation and molecular docking study
N-alkylbenzimidazole silver(I) complexes were synthesized and fully characterized by FT-IR, Mass, 1H, 13C1H} NMR spectroscopy, and elemental analysis. Synthesized N-alkylbenzimidazole silver(I) complexes were investigated for their antimicrobial activities against bacteria Escherichiacoli, Pseudomonas aeruginosa, Staphylococcus aureus, and the fungalstrainsCandidaalbicans and Candida glabrata. All the complexes
Substituted N-heterocyclic carbene PEPPSI-type palladium complexes with different N-coordinated ligands: Involvement in the direct C H bond activation of heteroarenes derivatives with aryl bromide and their antimicrobial, anti-inflammatory and antioxidant activities