Catalyst-free assembly of giant tris(heteroaryl)methanes: synthesis of novel pharmacophoric triads and model sterically crowded tris(heteroaryl/aryl)methyl cation salts
作者:Rodrigo Abonia、Luisa F Gutiérrez、Braulio Insuasty、Jairo Quiroga、Kenneth K Laali、Chunqing Zhao、Gabriela L Borosky、Samantha M Horwitz、Scott D Bunge
DOI:10.3762/bjoc.15.60
日期:——
A series of giant tris(heteroaryl)methanes are easily assembled by one-pot three-componentsynthesis by simple reflux in ethanol without catalyst or additives. Diversely substituted indoles (Ar1) react with quinolinealdehydes, quinolone aldehydes, chromone aldehydes, and fluorene aldehydes (Ar2CHO) and coumarins (Ar3) in 1:1:1 ratio to form the corresponding tris(heteroaryl)methanes (Ar1Ar2Ar3)CH
通过在乙醇中简单回流,无需催化剂或添加剂,通过一锅三组分合成可以轻松地组装一系列巨型三(杂芳基)甲烷。多取代吲哚(Ar 1 )与喹啉醛、喹诺酮醛、色酮醛、芴醛(Ar 2 CHO)和香豆素(Ar 3 )以1:1:1的比例反应生成相应的三(杂芳基)甲烷(Ar 1 Ar 2 Ar 3 )CH 以及 (Ar 1 Ar 1 Ar 2 )CH 三元组。通过取代吲哚与 Ar 2 CHO 的偶联,还合成了一系列新的 2:1 三联体。偶联反应也可以在水中(约 80 °C)进行,但化学选择性优于 (Ar 1 Ar 1 Ar 2 )CH 而不是 (Ar 1 Ar 2 Ar 3 )CH。通过X射线分析证实了代表性(Ar 1 Ar 2 Ar 3 )CH三元组的分子结构。通过与DDQ/HPF 6反应生成模型三(杂芳基/芳基)甲基鎓盐,并通过NMR、DFT和GIAO-DFT进行研究。
Design, synthesis, and molecular docking study of novel quinoline‐based
<i>bis</i>
‐chalcones as potential antitumor agents
作者:Daniel Insuasty、Stephanie García、Rodrigo Abonia、Braulio Insuasty、Jairo Quiroga、Manuel Nogueras、Justo Cobo、Gabriela L. Borosky、Kenneth K. Laali
DOI:10.1002/ardp.202100094
日期:2021.9
A novel series of quinoline-based symmetrical and unsymmetrical bis-chalcones was synthesized via a Claisen–Schmidt condensation reaction between 3-formyl-quinoline/quinolone derivatives with acetone or arylidene acetones, respectively, by using KOH/MeOH/H2O as a reaction medium. Twelve of the obtained compounds were evaluated for their in vitro cytotoxic activity against 60 different human cancer
Novel quinoline–imidazolium adducts via the reaction of 2-oxoquinoline-3-carbaldehyde and quinoline-3-carbaldehydes with 1-butyl-3-methylimidazolium chloride [BMIM][Cl]
作者:Kenneth K. Laali、Daniel Insuasty、Rodrigo Abonia、Braulio Insuasty、Scott D. Bunge
DOI:10.1016/j.tetlet.2014.05.094
日期:2014.7
A library of hydroxyquinolin-3-ylmethylimidazolium adducts were prepared in high yields from the reaction of [BMIM][Cl] with various substituted quinoline-3-carbaldehydes and 2-oxoquinoline-3-carbaldehydes under mild conditions by using sodium acetate in MeCN under ultrasound irradiation. The use of sodium acetate and imidazolium chloride was crucial for the success of these C C bond forming reactions. Attempted coupling with thiazolium bromide led instead to quinoline-3-carboxylic acid. (C) 2014 Elsevier Ltd. All rights reserved.