2-isoxazolines was prepared by 1,3-cycloaddition reactions of nitrile oxides to vinyl- and allylboronic esters. The influence of substituents on the reactivity, the regio- and stereoselectivity was examined and some examples of cycloadduct oxidation were described.
通过腈氧化物与
乙烯基和烯丙基
硼酸酯的1,3-环加成反应制备了各种
硼化的2-
异恶唑啉。考察了取代基对反应性,区域选择性和立体选择性的影响,并描述了环加合物氧化的一些实例。