Transition Metal-Free Iodosobenzene-Promoted Direct Oxidative 3-Arylation of Quinoxalin-2(<i>H</i>)-ones with Arylhydrazines
作者:Sanjay Paul、Ji Hyeon Ha、Ga Eul Park、Yong Rok Lee
DOI:10.1002/adsc.201700070
日期:2017.5.2
A transition metal‐free iodosobenzene‐promoted direct oxidative 3‐arylation of quinoxalin‐2(H)‐ones was developed using various arylhydrazines under air. The protocol affords a variety of 3‐arylquinoxalin‐2(H)‐one derivatives in moderate to good yields. This method provides a rapid access to biologically interesting benzo[g]quinoxalinones and pyrido[3,4‐b]pyrazinones. The present methodology features
在空气中使用各种芳基肼开发了无过渡金属的碘代苯促进喹喔啉-2(H)-1的直接氧化3芳基化反应。该协议以中等到良好的产率提供了多种3-芳基喹喔啉-2(H)-one衍生物。这种方法提供了快速获得生物学上令人感兴趣的苯并[ g ]喹喔啉酮和吡啶并[3,4- b ]吡嗪酮的途径。本方法在温和的反应条件下具有较高的官能团耐受性,包括碱敏基团以及烯丙基和苄基取代的喹喔啉-2(H)-酮。