BF<sub>3</sub>-grafted Fe<sub>3</sub>O<sub>4</sub>@Sucrose nanoparticles as a highly-efficient acid catalyst for syntheses of Dihydroquinazolinones (DHQZs) and Bis 3-Indolyl Methanes (BIMs)
core and grafting of boron trifluoride (BF3) onto the new surface. The catalytic activity of these nanoparticles was tested in syntheses of Dihydroquinazolinones (DHQZs) and Bis (3‐Indolyl) Methanes (BIMs) as two fruitful pharmaceutical structures. Acidic capacity, FT‐IR, XRD, VSM, TGA and SEM–EDX tests are carried out on such novel nanoparticles (NPs). Catalyst has shown more acidic capacity per one
当前的论文表示将蔗糖固定在Fe 3 O 4核上并将三氟化硼(BF 3)接枝到新表面上。在二氢喹唑啉酮(DHQZs)和双(3-吲哚基)甲烷(BIM)的合成中,作为两种卓有成效的药物结构,测试了这些纳米颗粒的催化活性。对这种新型纳米颗粒(NP)进行了酸性容量,FT-IR,XRD,VSM,TGA和SEM-EDX测试。与以前报道的磺化同系物相比,催化剂每1克NP的酸容量更高。
Sulfonic acid-functionalized magnetic nanoparticles as a recyclable and eco-friendly catalyst for atom economical Michael addition reactions and bis indolyl methane synthesis
作者:Hajar Mahmoudi、Abbas Ali Jafari、Soroosh Saeedi、Habib Firouzabadi
DOI:10.1039/c4ra11605d
日期:——
Sulfonic acid-functionalized magnetic nanoparticles as a recyclable and eco-friendly catalyst for atom economical Michael addition reaction and bis indolyl methane synthesis.
磺酸功能化磁性纳米颗粒作为可回收和环保催化剂,用于原子经济的迈克尔加成反应和双吲哚甲烷合成。
Synthesis, Anti-Methicillin-resistant S. aureus (MRSA) Evaluation, Quantitative Structure-Activity Relationship and Molecular Modeling Studies of Some Novel Bis-indoles as Prospective MRSA Pyruvate Kinase Inhibitors
作者:Mardia T. El Sayed、Nermien M. Sabry、Nehal A. Hamdy、Andrey Voronkov、Ifedayo V. Ogungbe、Konstantin Balakin、Mohamed S. Abdel-Aziz
DOI:10.2174/1570180815666171213144922
日期:2018.3.12
posed by MRSA. In this work, about 60 compounds of bis-indoles (diindolylmethanes and diindolylmethenes) were synthesized and screened as antibacterialagents against S. aureus and methicillin-resistant S. aureus (MRSA). The quantitative structure-activityrelationships (QSAR) of the compounds were also carried out in this work. Results: Good numbers of the compounds appear to be good antibiotic candidates
Preparation of immobilized hexamine on Fe3O4/SiO2 core/shell nanoparticles: a novel catalyst for solvent-free synthesis of bis(indolyl)methanes
作者:Sahar Kangari、Issa Yavari
DOI:10.1007/s11164-016-2590-z
日期:2016.12
VSM. According to SEM pictures, the nanoparticles are mostly spherical in shape, and their size is approximately 46 nm. The catalytic performance of these magnetic nanoparticles for the synthesis of bis(indolyl)methanes was investigated. The catalyst was readily recycled by the use of an external magnetic field and can be reused four times without significant loss of activity. Graphical Abstract
One dimensional CdS nanostructures: heterogeneous catalyst for synthesis of aryl-3,3′-bis(indol-3-yl)methanes
作者:Prakash K. Chhattise、Sudhir S. Arbuj、Kakasaheb C. Mohite、Sanjay V. Bhavsar、Amit S. Horne、Kalpana N. Handore、Vasant V. Chabukswar
DOI:10.1039/c4ra03419h
日期:——
Herein, we have developed a novel heterogeneous catalytic system for synthesis of bis(indol-3-yl)methanes using one dimensional (1D) CdS nanorods. CdS nanorods were synthesized by a solvothermal reaction technique at 200 °C over 12 h in the presence of ethylenediamine as a solvent. The prepared 1D CdS was characterized using various spectroscopic methods. X-ray diffraction (XRD) revealed the formation of highly crystalline CdS having a wurtzite structure. FESEM analysis confirms the formation of a rod like morphology with length around 150 to 200 nm and diameter â¼15 nm. TEM also validates the formation of uniform size one dimensional (1D) CdS nanostructures. The catalytic activity of 1D CdS as a Lewis acid was investigated for the synthesis of bis(indol-3-yl)methanes (BIMs) with various substituted aldehydes and indoles within shorter reaction time affording the corresponding product in excellent yield.