Organocatalytic, regioselective allylic- and 1,6-substitution of quinone monoketals with diaryl H-phosphine oxides
作者:Biquan Xiong、Gang Wang、Congshan Zhou、Yu Liu、Chang-An Yang、Panliang Zhang、Kewen Tang、Quan Zhou
DOI:10.1016/j.jorganchem.2018.12.020
日期:2019.4
An efficient selective synthesis of C- and O-phosphoryl-substituted phenols from easily available diaryl H-phosphine oxides with quinone monoketals (QMAs) has been developed. With the assistance of opponent characteristic additives (e.g., H2O and Et3N), diaryl H-phosphine oxides could selectively proceed the allylic- and 1,6-substitution to conjugate with the C-/O- positions of QMAs. The reported protocol
已经开发了由容易获得的二芳基H-膦氧化物与醌单缩酮(QMA)选择性合成C-和O-磷酰基取代的苯酚的方法。借助于相反的特征性添加剂(例如H 2 O和Et 3 N),二芳基H-氧化膦可以选择性地进行烯丙基和1,6-取代,以与QMA的C- / O-位置缀合。所报道的方案是绿色且实用的,并且代表了以中等至良好的产率官能化C- / O-磷酰基取代的苯酚的有效方法。