Hypervalent iodine(III)-induced oxidative [4+2] annulation of o-phenylenediamines and electron-deficient alkynes under metal-free conditions has been developed. The reaction allows for direct access to quinoxalines bearing two electron-withdrawing groups in an efficient manner.
超价
碘(III)在无
金属条件下引发的氧化[4+2]环化反应,成功实现了
邻苯二胺与缺电子
炔烃的合成。该反应高效地直接合成了带有两个吸电子基团的
喹喔啉类化合物。