Unlike the reported reversible addition of ketone enolborinates to ketones, the aldolization of ketones with bisboron enediolates derived from carboxylic acids proceeds without difficulty. A variety of α,β,β-trisubstituted-β-hydroxy acids have been thus synthesized in good to excellent yields and diastereoselectivities.
与已报道的将酮烯醇
硼酸酯可逆地添加到酮中不同,将酮与衍生自
羧酸的双
硼烯烯二醇酯进行的醛醇缩合没有困难地进行。因此已经以良好至优异的产率和非对映选择性合成了多种α,β,β-三取代-β-羟基酸。