A dinuclear ruthenium catalyst with a rigid anthracene spacer shows excellent regio- and stereo-selectivity in the atom-economic addition of aliphatic carboxylic acids to phenylacetylene, producing exclusively anti-Markovnikov enol-esters with high E/Z ratios of the isomers.
在脂肪族
羧酸与
苯乙炔的原子经济加成反应中,一种带有刚性
蒽间隔的二核
钌催化剂显示出极佳的区域和立体选择性,可生成具有高 E/Z 异构体比的完全反马尔科夫尼科夫烯醇酯。