A general approach to N-heterocyclic scaffolds using domino Heck–aza-Michael reactions
作者:Daniel L. Priebbenow、Scott G. Stewart、Frederick M. Pfeffer
DOI:10.1039/c0ob00835d
日期:——
Palladium-catalyzed domino Heck–aza-Michael reactions for the synthesis of a series of C1-substituted tetrahydro-β-carbolines, tetrahydroisoquinolines and isoindolines are described. The domino process involves the initial intermolecular Heck reaction of an aryl bromide with an electron deficient alkene, followed by an intramolecular aza-Michael reaction to form the new N-heterocycle in high yield
描述了钯催化的多米诺骨牌Heck-Aza-Michael反应,用于合成一系列C1取代的四氢-β-咔啉,四氢异喹啉和异二氢吲哚。多米诺过程涉及芳基溴与缺电子的烯烃的初始分子间Heck反应,然后进行分子内的氮杂-Michael反应,以高收率形成新的N-杂环。