Expanding Insight into Asymmetric Palladium-Catalyzed Allylic Alkylation of N-Heterocyclic Molecules and Cyclic Ketones
作者:Nathan B. Bennett、Douglas C. Duquette、Jimin Kim、Wen-Bo Liu、Alexander N. Marziale、Douglas C. Behenna、Scott C. Virgil、Brian M. Stoltz
DOI:10.1002/chem.201300030
日期:2013.4.2
enaminones! Lactams and imides have been shown to consistently provide enantioselectivities substantially higher than other substrate classes previously investigated in the palladium‐catalyzed asymmetric decarboxylative allylic alkylation. Several new substrates have been designed to probe the contributions of electronic, steric, and stereoelectronic factors that distinguish the lactam/imide series as
Eeny,meeny,miny ...︁ enaminones!内酰胺和酰亚胺已被证明始终提供比先前在钯催化的不对称脱羧烯丙基烷基化中研究的其他底物类别高得多的对映选择性。已经设计了几种新的底物来探测电子、空间和立体电子因素的贡献,这些因素将内酰胺/酰亚胺系列区分为优异的烷基化底物(参见方案)。这些研究最终导致碳环烯丙基烷基化底物的显着改进。