An effective system to reduce conjugated nitro olefins into the corresponding nitroalkanes is described. The system composed of Hantzsch ester (HEH) and silica gel in benzene exerts high yield and excellent chemoselectivity under almost neutral conditions. Facile applications of the system to the syntheses of natural products are also described.
描述了一种有效的系统,用于将共轭硝基烯烃还原为相应的硝基
烷烃。该系统由Hantzsch酯(HEH)和
硅胶在苯中组成,在几乎中性的条件下表现出高产率和优异的
化学选择性。还描述了该系统在自然产品合成中的简便应用。