The oxidizing system using sodium bromite with a catalytic amount of tri-butyltin chloride is applied for the preparations of isoxazolines and isoxazolesfrom aldoximes via dipolar cycloaddition.
使用溴化钠与催化量的氯化三丁基锡的氧化系统可用于通过偶极环加成反应从醛肟制备异恶唑啉和异恶唑。
Lanthanide triflate-catalyzed 1,3-dipolar cycloaddition reactions of polymer-supported nitrones with alkenes for the preparation of diverse 2-isoxazoline derivatives
作者:Shū Kobayashi、Ryo Akiyama
DOI:10.1016/s0040-4039(98)02100-5
日期:1998.12
1,3-Dipolar cycloadditionreactions of polymer-supported nitrones with alkenes proceeded smoothly in the presence of a catalytic amount of a lanthanide triflate to afford the corresponding 2-isoxazolines in high yields. Diverse 2-isoxazoline derivatives were prepared based on these solid-phase reactions.