An environmentally benign synthesis of isoxazolines and isoxazoles mediated by potassium chloride in water
作者:Liuquan Han、Bijun Zhang、Min Zhu、Jie Yan
DOI:10.1016/j.tetlet.2014.02.118
日期:2014.4
An effective and environmentally benign procedure for the synthesis of isoxazolines and isoxazoles has been developed by a cycloaddition of nitrile oxides with alkenes or alkynes in water. In this approach, potassium chloride is first oxidized into chlorine in water by the environmentally friendly oxidant Oxone®, then aldoximes are oxidized into nitrile oxides by the in situ generated hypochlorous
通过在
水中环
氧化腈与
烯烃或
炔烃,已开发出一种有效的,对环境有益的合成
异恶唑啉和
异恶唑的方法。在这种方法中,
氯化钾首先被环境友好的
氧化剂Oxone®
氧化为
水中的
氯,然后醛
肟被原位生成的
次氯酸氧化为腈
氧化物,最后在腈和
烯烃之间的1,3-偶极环加成反应或
炔烃以高收率提供相应的
异恶唑啉和
异恶唑。