Synthesis of novel β-aminocyclobutanecarboxylic acid derivatives by a solvent-free aza–Michael addition and subsequent ring closure
作者:Tamara Meiresonne、Sven Mangelinckx、Norbert De Kimpe
DOI:10.1039/c1ob05872j
日期:——
Novel β-aminocyclobutanecarboxylic acid derivatives were prepared via a sequential solvent-free aza-Michael addition of benzophenone imine across 3-halopropylidenemalonates and base-induced ring closure. These highly substituted cyclobutanedicarboxylic acid derivatives were subjected to a reactivity study which demonstrated the tendency of these donor–acceptor substituted four-membered rings to be
新型β-氨基环丁烷羧酸衍生物是通过连续无溶剂的aza-Michael加成法制备的二苯甲酮亚胺跨3-卤代丙二烯丙二酸酯和碱诱导的闭环。对这些高度取代的环丁烷二羧酸衍生物进行了反应性研究,结果表明这些供体-受体取代的四元环有转化为相应开环产物的趋势。