A Construction of α-Alkenyl Lactones via Reduction Radical Cascade Reaction of Allyl Alcohols and Acetylenic Acids
作者:Hua Zhang、Guo-Min Zhang、Shuai He、Zhi-Chuan Shi、Xiao-Mei Zhang、Ji-Yu Wang
DOI:10.1021/acs.orglett.0c02973
日期:2020.11.6
An iron-catalyzed cascade reaction of radical reduction of allyl alcohols and acetylenic acids to construct polysubstituted α-alkenyl lactones has been developed. In this paper, various allyl alcohols can form allyl ester intermediates and are further transformed into alkyl radicals, which form products through intramolecular reflex-Michael addition. In addition, this method can be used to prepare
已经开发了铁催化的烯丙醇和炔酸的自由基还原以构建多取代的α-烯基内酯的级联反应。在本文中,各种烯丙醇都可以形成烯丙基酯中间体,并进一步转化为烷基,通过分子内反射-迈克尔加成反应形成产物。另外,该方法可用于制备螺环烯基内酯。有趣的是,该协议可用于合成天然产物的骨架结构。此外,可以将产物进一步转化为β-亚甲基四氢呋喃和四氢呋喃二烯。