Facile Synthesis of 7??Methoxy??2??aryl??3??phenyl/or??H??8??[2??(4, 6??dimethyl??3, 5??dicarbethoxy??pyridyl)]??4H??1??benzopyran??4??ones

A Kumar Soni, GL David Krupadanam…

文献索引：Soni, Anil Kumar; Krupadanam, G. L. David; Srimannarayana Synthetic Communications, 2007 , vol. 37, # 5 p. 795 - 804

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被引用次数: 6

摘要

Abstract Condensation of 8??formyl??7??methoxy??2??phenyl??4H??1??benzopyran??4??ones (5a–f) with ethyl??3??aminocrotonate (6) in glacial acetic acid under Hantzsch conditions afforded 7?? methoxy??2??aryl??3??phenyl/or??H??8??[2??(4, 6??dimethyl??3, 5??dicarbethoxy??pyridyl)]??4H??1?? benzopyran??4??ones (7a–f) in good yields.