Indium(III) Trifluoromethanesulfonate: An Efficient Reusable Catalyst for the Alkynylation-Cyclization of 2-Aminoaryl Ketones and Synthesis of 2,4-Disubstituted Quinolines
作者:Dipak Prajapati、Kushal Lekhok、Ramesh Boruah
DOI:10.1055/s-2008-1042800
日期:——
An environmentally friendly and highly efficient procedure for the preparation of 2,4-disubstituted quinoline derivatives has been developed by a simple alkynylation-cyclization reaction of 2-aminoaryl ketones with phenylacetylenes in the presence of indium(III) trifluoromethanesulfonate In(OTf)3 under microwave irradiation and solvent-free conditions. This catalyst can be recovered after the reaction and reused efficiently in subsequent runs.
通过 2-氨基芳基酮与苯乙炔在三氟甲磺酸铟 (III) In(OTf)3 存在下的简单炔基化-环化反应,开发了一种环境友好且高效的制备 2,4-二取代喹啉衍生物的方法。微波辐射和无溶剂条件。该催化剂可以在反应后回收并在后续运行中有效地重复使用。