one-pot approach for the synthesis of quinolines from o-aminothiophenol and 1,3-ynone under mild conditions is disclosed. With the aid of ESI-MS analysis and parallel experiments, a three-step mechanism is proposed-a two-step Michael addition-cyclization condensation step leading to intermediate 1,5-benzothiazepine catalyzed by zirconocene amino acid complex Cp2Zr(η1-C9H10NO2)2, followed by I2-mediated
Green synthesis of trimetallic oxide nanoparticles and their use as an efficient catalyst for the green synthesis of quinoline and spirooxindoles: Antibacterial, cytotoxicity and anti-colon cancer effects
作者:Boshra Mahmoudi、Faezeh Soleimani、Hamideh Keshtkar、Mohammad Ali Nasseri、Milad Kazemnejadi
DOI:10.1016/j.inoche.2021.108923
日期:2021.11
The three-metallic oxide (Cu/Cr/Ni) nanoparticles were prepared using Echinops persicus plant extract via a simple, biocompatible, cost-effective, and non-toxic procedure, and their catalytic activity was evaluated over the synthesis of biologically active quinoline and spirooxindole derivatives. The synthesized nanoparticles were characterized by various analytical methods including UV–Vis, FTIR,
三金属氧化物 (Cu/Cr/Ni) 纳米粒子是使用刺猬植物提取物通过简单、生物相容性、成本效益高且无毒的方法制备的,并通过合成具有生物活性的喹啉和螺环吲哚衍生物。合成的纳米粒子通过各种分析方法进行表征,包括 UV-Vis、FTIR、EDX、XRD、FE-SEM、DLS 和 TEM 分析。反应中涉及的有效参数由Design-Expert 10.0.7软件设计。Cu/Cr/Ni纳米颗粒被用作在无溶剂条件下制备喹啉和螺吲哚的有效催化剂,具有良好到优异的效率。此外,由于含有丰富的酚类物质Echinops persicus花提取物、纳米粒子对大肠杆菌、金黄色葡萄球菌和蜡状芽孢杆菌的抗菌特性通过 MIC 以及扩散方法进行了研究。此外,基于 MTT 测定,在人结肠癌 (HT29) 细胞上研究了纳米颗粒的细胞毒性和抗结肠癌活性。结果和观察清楚地表明,Cu/Cr/Ni NPs 具有显着的催化和抗菌活性,完全优于其相应的单金属纳米粒子。
PEG-SO3H as a catalyst in aqueous media: A simple, proficient and green approach for the synthesis of quinoline derivatives
作者:M A NASSERI、S A ALAVI、B ZAKERINASAB
DOI:10.1007/s12039-012-0353-y
日期:2013.1
A convenient and efficient method was developed for the synthesis of quinolines, an important class of potentially bioactive compounds. The quinoline derivatives were prepared in water, an excellent solvent in terms of environmental impact and with reduced waste production. PEG-SO3H effectively catalysed the one-pot synthesis of quinolines by the condensation of o-aminoaryl ketones and carbonyl compound with high yields (75–95%). The compounds were isolated by simple filtration in a high purity form.
Triazole-gold (TAAu) catalyzed three-component coupling (A3 reaction) towards the synthesis of 2, 4-disubstituted quinoline derivatives
作者:Fusong Zhang、Qi Lai、Xiaodong Shi、Zhiguang Song
DOI:10.1016/j.cclet.2018.05.036
日期:2019.2
A gold-catalyzedthree-component coupling reaction (A3 reaction) was developed as an efficient approach for the synthesis of challenging 2, 4-disubstituted quinoline derivatives. Compared to previously reported Cu/Au bi-catalyst system, this protocol enables achieving A3 reaction only in the presence of triazole-gold catalyst. Notably, 4-alkyl substituted or 2-alkyl substituted quinoline derivatives
A series of 2,4-disubstituted quinolines were easily prepared through a one-pot reaction of structurally diverse 2-aminoaryl ketones with various arylacetylenes in the presence of K5CoW12O40Ë3H2O as a reusable and environmentally benign catalyst under microwave irradiation and solvent-free conditions.