for chemoselective oxidation of aldoximes to nitrile oxides by iodosobenzene in neutral aqueous media is reported. Their in situ intermolecular 1,3-dipolar cycloaddition (1,3-DC) with olefins in nanometer aqueous micelles occurs with improved stereoselectivity and acceleration of reaction rate toward synthesis of new chiral synthons, 3-(2'-C-3',4',6'-tri-O-benzylglycal)-Delta(2)-isoxazolines and others
报道了一种在中性
水性介质中
碘代苯将醛
肟化学选择性氧化为腈氧化物的高效策略。他们在纳米
水性胶束中与烯烃进行原位分子间1,3-偶极环加成反应(1,3-DC),提高了立体选择性,并加快了反应速度,从而合成了新的手性合成子3-(2'-C-3', 4′,6′-三-O-苄基糖基)-Delta(2)-
异恶唑啉等。用这种绿色方法进行光学纯的2,8-二氧杂双环[4.4.0]
癸烯骨架的构建,并通过B3LYP密度泛函理论预测了新的手性中心的立体
化学。