Ru-Catalyzed Regioselective CH-Hydroarylation of Alkynes with Benzylthioethers Using Sulfur as Directing Group
作者:Pedro Villuendas、Esteban P. Urriolabeitia
DOI:10.1021/acs.orglett.5b01552
日期:2015.6.19
Benzylthioethers react with internal alkynes in the presence of catalytic amounts of [Ru(cymene)Cl2]2 to give the corresponding ortho-alkenylated species, using sulfur as the sole directing group. The reaction is regiospecific, tolerates different substituents at both the sulfur and the aryl ring, and proceeds very efficiently with a large variety of electron-rich alkynes.
在催化量的[Ru(cymene)Cl 2 ] 2存在下,苄硫基醚与内部炔烃反应,使用硫作为唯一的导向基团,生成相应的邻链烯基化的物质。该反应是区域特异性的,在硫和芳基环上都可以容忍不同的取代基,并且可以与多种富电子的炔烃非常有效地进行。