Cobalt-Catalyzed, Aminoquinoline-Directed Functionalization of Phosphinic Amide sp<sup>2</sup> C–H Bonds
作者:Tung Thanh Nguyen、Liene Grigorjeva、Olafs Daugulis
DOI:10.1021/acscatal.5b02391
日期:2016.2.5
In this paper, we introduce arylphosphinic acid aminoquinoline amides as competent substrates for cobalt-catalyzed sp2 C–H bond functionalization. Specifically, the feasibility of their coupling with alkynes, alkenes, and allyl pivalate has been demonstrated. Reactions are catalyzed by simple Co(NO3)2 hydrate in ethanol or mixed dioxane/tBuOH solvent in the presence of Mn(OAc)3·2H2O additive, sodium
在本文中,我们介绍了芳基次膦酸氨基喹啉酰胺作为钴催化的sp 2 C–H键功能化的有效底物。具体地,已经证明了它们与炔烃,烯烃和新戊酸烯丙酯偶联的可行性。在乙醇或Mn(OAc)3 ·2H 2 O添加剂,新戊酸钠或乙酸盐碱的存在下,通过简单的Co(NO 3)2水合物在乙醇或混合的二恶烷/ t BuOH溶剂中催化反应,并使用空气中的氧气作为氧化剂氧化剂。指导基团的除去提供了邻官能化的P,P-二芳基次膦酸。