Perlite-Polyphosphoric acid (EP-PPA) as a novel, efficient, recyclable and eco-benign heterogeneous catalyst has been applied for the green and rapid synthesis of aryl/alkylbis(indolyl)methanes, in water, in good to excellent yields. The catalyst was characterized by XRF, FT-IR, TGA/DTG, ICP-OES, SEM-EDX and pH analysis. Importantly, the newly synthesized heterogeneous solidacidcatalyst can be recovered
Synthesis of 3‐substituted indoles promoted by pulverization‐activation method catalyzed by Bi(NO
<sub>3</sub>
)
<sub>3</sub>
·5H
<sub>2</sub>
O
作者:Mohammad M. Khodaei、Parvin Ghanbary、Iraj Mohammadpoor‐Baltork、Hamid R. Memarian、Ahmad R. Khosropour、Kobra Nikoofar
DOI:10.1002/jhet.5570450213
日期:2008.3
A new, facile, efficient, “green” and chemoselective procedure for the synthesis of indole derivatives has been developed with pulverization-activation method catalyzed by Bi(NO3)3·5H2O (PAMC- Bi(NO3)3·5H2O) through grinding of indoles with aldehydes or Michael acceptors in the presence of catalytic amounts of Bi(NO3)3·5H2O undersolvent-freeconditions.
First Aminocatalytic Synthesis of Bis(indolyl)methanes and DFT Studies on the Reaction Pathway
作者:Grace Basumatary、Rahul Mohanta、Satyajit Dey Baruah、Ramesh Ch. Deka、Ghanashyam Bez
DOI:10.1007/s10562-019-02932-2
日期:2020.1
Abstract Carbon–carbonbond-formation by aminocatalytic nucleophilic addition to aryl aldehyde ideally generates addition–elimination product. Here, we report an unexpected, yet efficient aminocatalytic nucleophilic addition of indole to aryl aldehydes to synthesize pharmacologically important bis(indolyl)methanes via aminocatalytic addition substitution reaction. Although many acid catalysed synthesis
Towards breast cancer targeting: Synthesis of tetrahydroindolocarbazoles, antibreast cancer evaluation, uPA inhibition, molecular genetic and molecular modelling studies
作者:Entesar M. Ahmed、Alaadin E. Sarhan、Dina H. El-Naggar、Reham R. Khattab、Mohamed El-Naggar、Shahenda M. El-Messery、Ghada S. Hassan、Marwa M. Mounier、Khaled Mahmoud、Neama I. Ali、Karima F. Mahrous、Mamdouh M. Ali、Mardia T. El Sayed
DOI:10.1016/j.bioorg.2019.103332
日期:2019.12
A series of some new tetrahydroindolocarbazole derivatives has been synthesized. The structure of the synthesized compounds has been confirmed by different spectroscopic techniques such as IR, NMR, elemental analysis and massspectrometry. The target compounds were evaluated for their antitumor activity against breast cancer cell line MCF-7, their GI% and their LC50 have been determined. Six of the
已经合成了一系列新的四氢吲哚并咔唑衍生物。合成的化合物的结构已通过不同的光谱技术(例如IR,NMR,元素分析和质谱法)确认。评估了目标化合物对乳腺癌细胞系MCF-7的抗肿瘤活性,确定了其GI%和LC 50。六个合成的化合物对MCF-7细胞系的GI%值超过70%,在71.9%至85.0%之间,此外化合物11的GI%值为99.9%,被认为是合成衍生物中活性最高的衍生物。化合物11 与DOX相比,u PA水平显着降低至3.5 ng / ml。化合物5,11和15显示出在MTAP和CDKN2A的表达显著减少,除了在DNA损伤彗星试验方法的显着降低。进行了分子建模研究,以解释活性配体作为uPA抑制剂的行为。
BiCl3-loaded montmorillonite K10: a new solid acid catalyst for solvent-free synthesis of bis(indolyl)methanes
作者:K. Ravi、B. Krishnakumar、M. Swaminathan
DOI:10.1007/s11164-014-1636-3
日期:2015.8
Abstract We report an efficient green process for synthesis of bis(indolyl)methane derivatives under solvent-free conditions by use of a newsolid acid catalyst, BiCl3-loaded montmorilloniteK10. The catalyst was characterized by SEM, BET surface area measurement, and determination of its surface acidity by temperature-programmed desorption measurements. The salient features of the procedure are its