An efficient one pot syntheses of aryl-3,3′-bis(indolyl)methanes and studies on their spectral characteristics, DPPH radical scavenging-, antimicrobial-, cytotoxicity-, and antituberculosis activity
作者:G.S. Suresh Kumar、S. Kumaresan、A. Antony Muthu Prabhu、N. Bhuvanesh、P.G. Seethalakshmi
DOI:10.1016/j.saa.2012.09.046
日期:2013.1
and the methodology could be applied on a range of closely related substrates. The solvation characteristics in ground and excited states of the compounds by monitoring the absorbance and fluorescence band maxima have been studied. The fluorescence studies in protic and aprotic solvents were rationalized on the basis of solute-solvent interaction and substituents effect on these photophysical processes
描述了由吲哚/ 2-甲基吲哚和甲酰基苯氧基脂族酸有效地一锅合成芳基-3,3'-双(吲哚基)甲烷(BIM)的方法。在碳酸钾明矾作为催化剂的存在下,同时实现了羧酸的酯化和芳族亲电取代反应。该催化剂可以被回收和再利用,而其催化活性没有实质损失,并且该方法可以应用于一系列紧密相关的底物。通过监测吸光度和最大荧光带,研究了化合物在基态和激发态的溶剂化特性。质子和非质子溶剂中的荧光研究是基于溶质-溶剂相互作用和取代基对这些分析的光物理过程的影响而合理化的。制备的化合物显示出对人类病原体的有效抗菌作用,对A431细胞系的细胞毒性和DPPH自由基清除作用。已经对这项工作中合成的一些化合物进行了单晶XRD研究。