It was found that the reaction of thioboronites with carbonyl compounds and ketene proceeds with the initial formation of vinyloxyboranes (VII). The boranes were found to be important intermediates for the formation of β-hydroxythiolesters by the reaction with various carbonyl compounds. Vinyloxyborane derivatives can be alternatively prepared by the reactions of trialkylboranes and α-diazocarbonyl
发现
硫代
硼酸盐与羰基化合物和
乙烯酮的反应随着
乙烯基氧基
硼烷(VII)的初始形成而进行。发现
硼烷是通过与各种羰基化合物反应形成 β-羟基
硫醇酯的重要中间体。
乙烯基氧基
硼烷衍
生物也可以通过三烷基
硼烷和α-重氮羰基化合物的反应制备。
硼烷类似地与羰基化合物反应得到β-羟基酮和β-羟基酯。