An Anionic Strategy for Three- and Four-Component Coupling Reactions Leading to Ketone Frameworks Based on Vinylogous Conversion of Dilithio Ketone α,β-Dianions
作者:Shin-ya Yamato、Go-hei Yamamura、Mitsuo Komatsu、Masashi Arai、Takahide Fukuyama、Ilhyong Ryu
DOI:10.1021/ol050813y
日期:2005.6.1
[reaction: see text] Ketone alpha,delta-dianions are generated by vinylogous extension of ketone alpha,beta-dianions with alkenes such as vinylarenes, vinylsilanes, and vinyl sulfides, which then undergo reactions at the delta and alpha positions with different electrophiles, creating ketone frameworks. This work represents a cascade-type anion method that achieved three- and four-carbon component
[反应:请参阅文字]酮α,δ-二价阴离子是通过将酮α,β-二价阴离子与烯键(如乙烯基芳烃,乙烯基硅烷和乙烯基硫化物)乙烯基延伸而产生的,然后这些烯在δ和α位与不同的亲电试剂发生反应,创建酮框架。这项工作代表了一种级联型阴离子方法,该方法实现了三碳和四碳组分的组装反应,从而产生了酮。