Synthesis of β-Arylacyl<i>/</i>β-Heteroarylacyl-β-alkylidene Malonates and Their Application in Substituted Pyridone Synthesis
作者:Manoj Balu Wagh、R. Shankar、K. Mini、T. Krishnamohan、M. V. Madhubabu、Abir K. Pal、Sarva Jayaprakash、T. Krishna、Vilas Dahanukar、U. K. Syam Kumar、C. H. Gill
DOI:10.1002/jhet.991
日期:2013.1
developed for the synthesis of β‐arylacyl/β‐heteroarylacyl‐β‐alkylidine malonates in moderate to good yields by the reaction of Stork aryl and heteroaryl enamine with β‐chloroalkylidene malonates. The reaction involves conjugate (Michael) addition of Stork enamine on β‐chloroalkylidene malonates and elimination of chloride ion. These Michael adducts were utilized as intermediates for the synthesis of highly
通过Stork芳基和杂芳基烯胺与β-氯代亚烷基丙二酸酯的反应,已开发出一种以中等至良好收率合成β-芳基/β-杂芳基-β-烷基丙二酸酯的新方法。反应包括在β-氯亚烷基丙二酸酯上共轭(Michael)添加Stork enamine和消除氯离子。这些迈克尔加合物被用作中间体,通过5 +1环环化法合成高度取代的1,4-二烷基-2-氧代-6-芳基/杂芳基-1,2-二氢吡啶-3-羧酸乙酯。