One‐Pot Synthesis of Quinoline Derivatives Directly from Terminal Alkynes
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Sequential Ruthenium(II) and Acid Catalysis
作者:Min Zhang、Thierry Roisnel、Pierre H. Dixneuf
DOI:10.1002/adsc.201000278
日期:2010.10.9
A convenient one-potsynthesis of 2,3-disubstituted, 2,3,6-trisubstituted, and 2,3,6,7-tetrasubstituted quinoline analoguesfrom terminal alkynes via sequential ruthenium(II) and para-toluenesulfonic acid (p-TSA) co-catalyzed reactions is described. The catalytic process is shown to take place first via intermediate formation of an allyl ketone and then addition of an aniline derivative to the allyl
A new catalytic amination of aromatic olefins with anilines is presented. In a domino reaction, substituted quinoline derivatives are obtained in the presence of cationic rhodium complexes, such as [Rh(cod)2]BF4, and PPh3. Ethylbenzene is formed as a by-product in this new oxidative reaction. The first transition metal catalyzed anti-Markovnikov hydroamination of styrene with anilines occurs as a side
Ytterbium(III) triflate catalyzed domino reaction of arylamines and styrene oxides: Synthesis of 2-benzyl-3-arylquinoline derivatives
作者:Saghir Ali、Abu Taleb Khan
DOI:10.1016/j.tetlet.2021.152981
日期:2021.4
efficient and straightforward method for the synthesis of 2-benzyl-3-arylquinoline derivatives is reported involving the domino reaction of substituted arylamines and styrene oxides in the presence of 10 mol% ytterbium(III) triflate in acetonitrile at 80 °C. Additionally, the reaction of aliphatic epoxides with p-anisidine provided 2,3-dialkylquinoline derivatives under identical reaction conditions. Important
报道了一种合成 2-苄基-3-芳基喹啉衍生物的高效而直接的方法,该方法涉及取代芳胺和苯乙烯氧化物在 80 °C 下在 10 mol% 镱 (III) 三氟甲磺酸乙腈溶液存在下发生的多米诺反应。 此外,脂肪族环氧化物与 p-茴香胺的反应在相同的反应条件下提供了 2,3-二烷基喹啉衍生物。该方案的重要特点是易于处理、底物范围广、产率高以及形成两个 CN 键和两个 CC 键。
Sc(OTf)<sub>3</sub>-Mediated One-Pot Synthesis of 2,3-Disubstituted Quinolines from Anilines and Epoxides
作者:Md Shafaat Al Mehedi、Jetze J. Tepe
DOI:10.1021/acs.joc.0c00803
日期:2020.5.15
Here, we report the first synthesis of 2,3-disubstituted quinolines from anilines and aromatic or aliphatic epoxides. This reaction utilizes Sc(OTf)3 as a Lewis acid and TEMPO as an oxygen scavenger. A wide variety of highly substituted quinolines were obtained with moderate to excellent yields (up to 96%).
Efficient One-Pot Synthesis of 2-Alkylquinolines under Solvent-Free Conditions Using Sulfonic Acid Functionalized Ionic Liquid as a Recoverable and Reusable Catalyst
作者:Min Zhang、Yuqiang Ding、Biao Xiong、Ting Wang、Li Wang
DOI:10.3987/com-11-12289
日期:——
Sulfonic acid functionalized ionic liquid (FIL-A) was firstly used as a recoverable and reusable catalyst for the synthesis of 2-alkylquinoline derivatives from simple and readily available alkylaldehydes and arylamines. The method has the advantages of simple experimental procedure, easy recovery and reuse of catalyst, solvent-free and mild reaction conditions, excellent functional group tolerance, etc. which makes it a highly practical and environmentally benign pathway for the synthesis of 2-alkylquinolines.