Palladium(II)-Catalyzed C(sp3)–H Activation of N,O-Ketals towards a Method for the β-Functionalization of Ketones
作者:Danny Ho、Jonas Calleja、Matthew Gaunt
DOI:10.1055/s-0037-1611664
日期:2019.3
formal β-functionalization of aliphatic ketones via a palladium-catalyzed sp3 C–H activation pathway is reported. An N,O-ketal directs an aliphatic C–H carbonylation to form γ-lactams which upon hydrolysis generate γ-keto carboxylic acids. This C–C bond-forming reaction is tolerant of a range of functional groups, enabling the synthesis of a range of synthetically important building blocks. Furthermore,
报道了一种通过钯催化的 sp3 C-H 活化途径对脂肪族酮进行形式 β 功能化的方法。N,O-缩酮引导脂肪族 C-H 羰基化形成 γ-内酰胺,水解后生成 γ-酮羧酸。这种 C-C 键形成反应可以耐受一系列官能团,从而能够合成一系列具有重要合成意义的构件。此外,这种转变背后的概念也使相关的 C-H 烯基化过程发展为高度官能化的杂环。