Ligand and Substrate Effects on Regio‐ and Stereoselective Ru(II)‐Catalyzed Hydroacyloxylations to Vinylic Esters
作者:Paul A. Beasley、Frank E. McDonald
DOI:10.1002/adsc.202301222
日期:2024.2.20
Two Ru(II)-catalytic systems were developed for anti-Markovnikov regioselective hydroacyloxylations of terminal alkynes to vinylic esters. [Ru(NCCH3)6][(BF4)2] favors (E)-vinylic ester products with arylacetylenes and select carboxylic acids, whereas a Ru scorpionate complex with two electron-withdrawing ligands favors (Z)-vinylic ester isomers.
开发了两种 Ru(II) 催化系统,用于末端炔烃向乙烯基酯的反马尔可夫尼科夫区域选择性加氢酰氧基化。[Ru(NCCH3)6][(BF4)2]有利于与芳基乙炔和选择的羧酸形成(E)-乙烯基酯产物,而具有两个吸电子配体的Ru蝎形络合物有利于(Z)-乙烯基酯异构体。