KF/Al<sub>2</sub>O<sub>3</sub>: Solid-Supported Reagent Used in 1,3-Dipolar Cycloaddition Reaction of Nitrile Oxide
作者:Monalisa Boruah、Dilip Konwar
DOI:10.1080/00397911.2011.558665
日期:2012.11.15
Abstract The stereoselective synthesis of 2-isoxazolidine through 1,3-dipolar cycloaddition reaction of nitrile oxide, which is in situ generation from aldoxime in the presence of N-bromosuccinamide and solid-supported reagent KF/Al2O3 at room temperature, is reported. KF/Al2O3 is sufficiently basic such that it can replace organic bases such as Et3N used in typical procedures and it catalyses the
摘要 报道了在室温下,在 N-溴代琥珀酰胺和固载试剂 KF/Al2O3 存在下,由醛肟原位生成腈氧化物的 1,3-偶极环加成反应立体选择性合成 2-异恶唑烷。KF/Al2O3 具有足够的碱性,因此它可以替代典型程序中使用的有机碱,例如 Et3N,并且它催化反应以提高反应速率。图形概要