Synthesis and characterization of a Ni nanoparticle stabilized on Ionic liquid-functionalized magnetic Silica nanoparticles for tandem oxidative reaction of primary alcohols
activity of these nanoparticles was tested in aerobic oxidation of primary alcohols that showed good performance in the wide range of primary alcohols in water at mild reaction conditions. As a second step of this work, the tandem oxidativesynthesis of alkylacrylonitriles and bisindolylmethanes were investigated using primary alcohols under oxidation conditions. This catalyst system can be recovered using
Abstract A series of bioactive bis(indolyl)methanes are synthesized by one-pot green reaction of indole with various substituted aldehydes by microwave irradiation under solvent free conditions. The antibacterialactivity against Staphylococcus aureus and anti-inflammatory activity of the synthesized bis(indolyl)methanes are evaluated in vitro and compared to standard drugs tetracycline and diclofenac
A rapid, efficient and versatile green synthesis of 3,3'-diindolylmethanes
作者:Thanigaimalai Pillaiyar、Muhammad Dawood、Hina Irum、Christa E. Müller
DOI:10.24820/ark.5550190.p010.259
日期:——
The natural product 3,3’-diindolylmethane (DIM) exhibits anti-cancer and immunostimulatory properties. We report an operationally simple, efficient and versatile synthesis of DIM derivatives by reaction of indoles with aldehydes in the presence of sulfuric acid in water. Short reaction times of only 5 min, simple work-up procedure, avoidance of hazardous organic solvents, and excellent yields are apparent
天然产物 3,3'-二吲哚基甲烷 (DIM) 具有抗癌和免疫刺激特性。我们报告了一种操作简单、高效且通用的 DIM 衍生物合成方法,该合成方法是在水中硫酸存在下吲哚与醛反应。仅 5 分钟的短反应时间、简单的后处理程序、避免使用有害有机溶剂和出色的收率是该方法的明显优势。合成协议容忍广泛的官能团,允许快速、直接地访问各种 DIM 衍生物,包括 20 种以前未在文献中描述的新化合物,它们具有作为抗癌药物的潜力。
Iron-Catalyzed Oxidative Coupling of Benzylamines and Indoles: Novel Approach for Synthesis of Bis(indolyl)methanes
作者:Kovuru Gopalaiah、Sankala Chandrudu、Alka Devi
DOI:10.1055/s-0034-1380012
日期:——
route for synthesis of bis(indolyl)methanes has been developed by the oxidative coupling of benzylamines and indoles in the presence of iron(II) triflate as a catalyst and molecular oxygen as an oxidant. This method promises versatility, cost-effectiveness, and efficiency. A novel route for synthesis of bis(indolyl)methanes has been developed by the oxidative coupling of benzylamines and indoles in the
Magnetic inorganic–organic hybrid nanomaterial for the catalytic preparation of bis(indolyl)arylmethanes under solvent-free conditions: Preparation and characterization of H5PW10V2O40/pyridino-Fe3O4 nanoparticles
作者:Reza Tayebee、Mostafa M. Amini、Nasrin Abdollahi、Azam Aliakbari、Sima Rabiei、Hassan Ramshini
DOI:10.1016/j.apcata.2013.07.065
日期:2013.11
hybrid material H5PW10V2O40/pyridino-Fe3O4 (HPA/TPI-Fe3O4) nanoparticles provide an efficient and economic route for the synthesis of substituted bis(indolyl)methanes by the electrophilic substitution of indole with various aldehydes and ketones under solvent-free conditions with excellent yields in <30 min. This catalyst was prepared by the chemically anchoring H5PW10V2O40 onto Fe3O4 nanoparticles via
磁性可分离的无机-有机杂化材料H 5 PW 10 V 2 O 40 /吡啶-Fe 3 O 4(HPA / TPI-Fe 3 O 4)纳米颗粒为通过以下方法合成取代的双(吲哚基)甲烷提供了一种有效而经济的途径在无溶剂条件下用各种醛和酮对吲哚进行亲电取代,在不到30分钟的时间内即可获得优异的收率。通过将H 5 PW 10 V 2 O 40化学固定在Fe 3 O 4上来制备该催化剂。通过使用N- [3-(三乙氧基甲硅烷基)丙基]异烟酰胺(TPI)接头制备纳米颗粒。高催化活性和使用外部磁场易于回收是该新型催化系统的其他环保特性。催化剂被循环至少八次而没有明显的催化活性损失。用于HPA / TPI-Fe 3 O 4的表征技术(如XRD,SEM和FTIR)证明,保留了吡啶改性的Fe 3 O 4纳米颗粒表面上的钨-钒磷酸的Keggin结构。