作者:Qi Xu、Xiaoxuan Zhou、Si Zhang、Ling Pan、Qun Liu、Yifei Li
DOI:10.1021/acs.orglett.1c01596
日期:2021.6.18
proceed in a highly regio- and stereospecific manner involving the visible-light-induced conversion of a ketene dithioacetal to the thiavinyl 1,3-dipole intermediate, followed by a formal [3 + 2] cycloaddition and C–S bond cleavage. Furthermore, it is also an efficient approach for the late-stage functionalization of natural products and complex molecules, even being induced by sunlight under ambient
描述了可见光诱导的烯烃分子间硫烯基化,包括活化和未活化的烯烃。这种硫烯基化反应以高度区域和立体有择的方式进行,包括可见光诱导的乙烯酮二硫缩醛转化为硫乙烯基 1,3-偶极中间体,然后是正式的 [3 + 2] 环加成和 C–S键断裂。此外,它也是天然产物和复杂分子后期功能化的有效方法,即使在环境条件下由阳光诱导。