An efficient ultrasound promoted catalyst-free protocol for the synthesis of chromeno [4, 3-b] quinolin-6-ones

JV Prasad, JS Reddy, NR Kumar, KA Solomon…

文献索引：Prasad, J. Venkata; Reddy, J. Satyanarayana; Kumar, N. Ravi; Solomon, K. Anand; Gopikrishna Journal of Chemical Sciences, 2011 , vol. 123, # 5 p. 673 - 679

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被引用次数: 10

摘要

Abstract A convenient, catalyst-free protocol for the quantitative synthesis of fused chromeno [4, 3-b] quinolin-6-ones has been developed by simple one-pot reaction of substituted anilines with 4-chloro-3-formylcoumarin using ultrasound irradiation. The protocol offers the advantages of mild reaction conditions, short reaction times and high yields. Graphical Abstract Tetracyclic chromeno-quinolines are precipitated as pure products from the ...