Ru(II)-Catalyzed Difunctional Pyridyloxy-Directed Regio- and Stereospecific Addition of Carboxylic Acids to Internal Alkynes
作者:Qin Wang、Yan Shi、Xiaoli Huang、Yongzhuang Wang、Jiao Jiao、Yuhai Tang、Jing Li、Silong Xu、Yang Li
DOI:10.1021/acs.orglett.1c04052
日期:2022.1.14
A highly efficient Ru(II)-catalyzedregio- and stereospecific hydro-oxycarbonylation of unsymmetrical internal alkynes bearing a difunctional 2-pyridyloxy directing group with carboxylic acids has been developed, which provides allylic (Z)-enol esters in good to excellent yields with a broad substrate scope under mild conditions. The difunctional directing group can be diversely derivatized, particularly
已开发出一种高效的 Ru(II) 催化的带有双官能 2-吡啶氧基导向基团的不对称内部炔烃与羧酸的区域和立体有择羟基羰基化反应,它以良好至优异的产率提供烯丙基 ( Z )-烯醇酯温和条件下广泛的底物范围。双官能导向基团可以进行多种衍生化,特别是用各种亲核试剂进行烯丙基取代,得到不含导向基团的 β-官能化 ( Z )-烯醇酯。