Visible-Light-Mediated Strategies to Assemble Alkyl 2-Carboxylate-2,3,3-Trisubstituted β-Lactams and 5-Alkoxy-2,2,4-Trisubstituted Furan-3(2H)-ones Using Aryldiazoacetates and Aryldiazoketones
作者:Laiéli S. Munaretto、Caio Y. dos Santos、Rafael D. C. Gallo、Celso Y. Okada、Victor M. Deflon、Igor D. Jurberg
DOI:10.1021/acs.orglett.1c03662
日期:2021.12.3
describes the reaction with sulfoxides to afford the corresponding sulfoxonium ylides, followed by reaction with aryldiazoketones to produce 5-alkoxy-2,2,4-trisubstituted furan-3(2H)-ones. These protocols take advantage of the photolysis of aryldiazoacetates and the photochemically promoted Wolff rearrangement of aryldiazoketones.
从芳基重氮乙酸酯开始描述了两种新的可见光介导的策略。第一种方法描述了它们与叠氮化物反应得到相应的亚胺,然后与芳基重氮酮反应生成 2-羧酸烷基酯-2,3,3-三取代的 β-内酰胺。第二种方法描述了与亚砜反应得到相应的亚砜叶立德,然后与芳基重氮酮反应生成 5-烷氧基-2,2,4-三取代呋喃-3(2H)-酮。这些协议利用芳基重氮乙酸酯的光解和芳基重氮酮的光化学促进 Wolff 重排。