Electrochemically dehydrogenative C–H/P–H cross-coupling: effective synthesis of phosphonated quinoxalin-2(1<i>H</i>)-ones and xanthenes
作者:Ke-Jing Li、Yang-Ye Jiang、Kun Xu、Cheng-Chu Zeng、Bao-Guo Sun
DOI:10.1039/c9gc01474h
日期:——
phosphonation of quinoxalin-2(1H)-ones and C(sp3)–H phosphonation of xanthenes has been developed. The chemistry was performed in an undivided cell under constant current conditions and features a wide range of substrates, up to 99% yield and it is free of transition-metal catalysts- and external oxidants, thereby providing a straightforward approach for dehydrogenativeC–H/P–H cross-coupling. In addition
已开发出一种有效的电化学方法,用于喹喔啉-2(1 H)-酮的C(sp 2)-H磷酸化和x吨的C(sp 3)-H磷酸化。该化学反应是在恒定电流条件下在一个未分开的电池中进行的,具有多种底物,产率高达99%,并且不含过渡金属催化剂和外部氧化剂,从而为CH / H /脱氢提供了直接的方法P–H交叉耦合。另外,对照实验表明,某些反应可能涉及自由基途径。