Synthesis and diverse general oxidative cyclization catalysis of high-valent Mo<sup>VI</sup>O<sub>2</sub>(HL) to ubiquitous heterocycles and their chiral analogues with high selectivity
作者:Nabyendu Pramanik、Satinath Sarkar、Dipanwita Roy、Sudipto Debnath、Sukla Ghosh、Saikat Khamarui、Dilip K. Maiti
DOI:10.1039/c5ra21825j
日期:——
The first synthesis and diverse oxidative cyclization catalysis properties of high-valent MoVI–triazole are demonstrated towards highly selective construction of benzimidazoles, benzothiazoles, isoxazolines, isoxazoles and their chiral analogues.
Microwave assisted synthesis, biological activities, and in silico investigation of some benzimidazole derivatives
作者:Zeel A. Bhavsar、Prachi T. Acharya、Divya J. Jethava、Dhaval B. Patel、Mahesh S. Vasava、Dhanji P. Rajani、Edwin Pithawala、Hitesh D. Patel
DOI:10.1002/jhet.4129
日期:2020.12
molecules were examined for in‐vitro pharmaceutical activities like antibacterial, antifungal, antimalarial, antituberculosis, and anti‐oxidant. Additionally, in silico study was also carried out. We also evaluated the steadiness and molecular interaction of docked complex, that is, complex of molecule (7s) with PDB: 5ZNI and complex of derivative (7l) with PDB: 3VLN, we have established a molecular dynamics
在微波辅助条件下,在氯仿存在下,N-甲基-邻苯二胺或邻苯二胺与Ni(OAc)2催化的不同芳族醛偶联,制得了2-取代苯并咪唑的一些衍生物。所有合成分子的结构确认均通过FT-IR,13 C NMR,1H NMR,ESI-MS和元素分析。检查所有制备的分子的体外药物活性,例如抗菌,抗真菌,抗疟疾,抗结核和抗氧化剂。另外,还进行了计算机模拟研究。我们还评估了对接复合物(即分子(7s)与PDB:5ZNI的复合物和衍生物(7l)与PDB:3VLN的复合物)的稳定性和分子相互作用。,我们已经建立了基于最佳对接分子的分子动力学模型。通过计算的ADME-Tox描述符对所有新制备的分子进行了鉴定,使其具有出色的药代动力学物质,这表明这些衍生物可被用作扩展某些创新活性化合物的原料。
Vanadyl Acetylacetonate-Copper (II) Trifluoro Methane Sulfonate Catalyzed Eco-friendly Synthesis of Substituted Benzimidazoles in Aqueous Media
作者:Samiran Halder
DOI:10.13005/ojc/360413
日期:2020.8.28
Various substituted benzimidazoles have been successfully synthesized in aqueous medium by developing VO(acac)(2)-Cu(OTf)(2) catalytic system. A green synthetic protocol has been created in presence of water and cetyltrimethyl ammonium bromide (CTAB) system in an organic solvent free condition. This chemoselective cyclocondensation cumoxidation process occurred in aqueous media. In this suitable method easily synthesized 2-Substituted benzimidazoles with good yields and no 1,2-disubstituted by-products were noticed. Excellent yields, environmentally benign and mild reaction condition, easy purification of the desired products are the main attractive features of this newly devised method.[GRAPHICS]