Copper(I)-Catalyzed [ 3+ 2] Cycloaddition of 3-Azidoquinoline-2,4(1H,3H)-diones with Terminal Alkynes
作者:Stanislav Kafka、Sylvia Hauke、Arjana Salcinovic、Otto Soidinsalo、Damijana Urankar、Janez Kosmrlj
DOI:10.3390/molecules16054070
日期:——
are readily available from 4-hydroxyquinolin-2(1H)-ones 4 via 3-chloroquinoline-2,4(1H,3H)-diones 5, afford, in copper(I)-catalyzed [3 + 2] cycloaddition reaction with terminal acetylenes, 1,4-disubstituted 1,2,3-triazoles 3 in moderate to excellent yields. The structures of compounds 3 were confirmed by 1H and 13C-NMR spectroscopy, combustion analyses and mass spectrometry.
3-叠氮喹啉-2,4(1H,3H)-二酮 1 可通过 3-氯喹啉-2,4(1H,3H)-二酮 5 从 4-羟基喹啉-2(1H)-酮 4 轻松获得,提供, 在铜 (I) 催化的 [3 + 2] 环加成反应与末端乙炔中,1,4-二取代的 1,2,3-三唑 3 以中等至极好的收率进行。化合物3的结构经1H和13C-NMR光谱、燃烧分析和质谱证实。