Iminoxyl Radical-Promoted Oxycyanation and Aminocyanation of Unactivated Alkenes: Synthesis of Cyano-Featured Isoxazolines and Cyclic Nitrones
作者:Fei Chen、Fei-Fei Zhu、Man Zhang、Rui-Hua Liu、Wei Yu、Bing Han
DOI:10.1021/acs.orglett.7b00826
日期:2017.6.16
oxidant, CuCN as the commercially available cyanating reagent, and pentamethyldiethylenetriamine (PMDETA) as the ligand. By using this protocol, a series of useful cyano-featured isoxazolines and cyclic nitrones were efficiently prepared.
开发了一种新颖且简便的方法,用于内部未活化烯烃的邻位氧氰化和氨基氰化。该方法利用源自β,γ-和γ,δ-不饱和酮肟引发的亚氨基氧基的二分反应性,以叔丁基过氧化氢(TBHP)为环境友好型氧化剂,CuCN为氧化剂,提供内部烯烃的一般双官能化。市售的氰化试剂,以及五甲基二亚乙基三胺(PMDETA)作为配体。通过使用此协议,有效地制备了一系列有用的氰基特征的异恶唑啉和环状硝酮。