Limno-CP: A Natural-Product-Inspired 5-Aryl-3(2H)-furanone as Scaffold for a Library of α-Modified Enones
作者:Sabine Amslinger、Simon Lindner
DOI:10.1055/s-0030-1260115
日期:2011.8
A library of 5-aryl-3(2H)-furanones that are modified in the α-position of the α,β-unsaturated carbonyl system was prepared via simple one- to three-step transformations from one common scaffold. The ¹³C NMR characterization of the enone system showed a strong influence of the α-substituents, especially on the shifts of the α- and β-carbon atoms. Probing the addition chemistry of nucleophiles versus our α-modified enones, a 1,2-addition-elimination was found, but no 1,4-addition.
制备了一种含有5-芳基-3(2H)-呋喃酮的库,这些化合物在α,β-不饱和羰基系统的α位进行了修饰,采用从一个共同骨架出发的简单一至三步转化。¹³C NMR对烯酮系统的表征显示出α-取代基对α和β碳原子位移的强烈影响。对亲核试剂与我们α-修饰的烯酮进行加成反应的研究发现了1,2-加成-消除反应,但没有发现1,4-加成反应。