Palladium-catalyzed three-component Heck/sulfonation/amination leading to quaternary 3,4-dihydroisoquinolinones
作者:Yu-Jiao Zhang、Liang-Yuan Pu、Yi-Miao He、Fan Teng
DOI:10.1016/j.tetlet.2022.154240
日期:2022.12
natural products. In this work, an efficiently palladium-catalyzed three-component Heck/sulfonation/amination to elaborate a class of quaternary 3,4-dihydroisoquinolinones embedding a newly formed sulfonamide group in the mild reaction conditions has been firstly reported. DABSO was employed as the bench-stable SO2 source. To our delight, this reaction exhibited good tolerance, and various quaternary
季异喹啉酮广泛存在于众多药物分子和天然产物中。在这项工作中,首次报道了一种有效的钯催化三组分 Heck/磺化/胺化,以在温和的反应条件下制备一类嵌入新形成的磺酰胺基团的季铵盐 3,4-二氢异喹啉酮。DABSO 被用作稳定的 SO 2源。令我们高兴的是,该反应表现出良好的耐受性,并且可以在温和的反应条件下有效地制备各种季铵盐 3,4-二氢异喹啉酮。此外,简单的芳基碘化物也可以实现从中等到优异产率的苯磺酰胺衍生物。