Syntheses of polysubstituted pyrroles and of 2,3-disubstituted quinoxalines and substituted benzo[<i>g</i>]quinoxalines
作者:Giorgio Adembri、Angela Maria Celli、Alessandro Sega
DOI:10.1002/jhet.5570340232
日期:1997.3
cis-diacetylethylene (4) reacted under mild conditions with 3-amino-2-butenoic acid methyl ester (6), benzene-1,2-diamine and naphthalene-2,3-diamine to give polysubstituted pyrroles, 2,3-disubstituted quinoxalines and 2,3-disubstituted benzo[g]quinoxalines respectively. Some aspects of the reactions mechanisms are discussed.
四乙酰基乙烯(1)和顺式-二乙酰基乙烯(4)在温和条件下与3-氨基-2-丁烯酸甲酯(6),苯-1,2-二胺和萘-2,3-二胺反应生成多取代的吡咯分别是2,3-二取代的喹喔啉和2,3-二取代的苯并[ g ]喹喔啉。讨论了反应机理的一些方面。