One-pot synthesis of multi-substituted conjugated dienones by trapping allene carbocations with active ylides
作者:Dan Ni、Longlong Song、Yun Zhao、Shunying Liu
DOI:10.1039/d1cc06405c
日期:——
A Rh(II)/boron reagent co-catalyzed unprecedent transformation was established for the rapid construction of multi-substituted conjugated dienones under mild conditions by trapping allene carbocations with oxonium ylides from simple starting points in yields up to 85%. Two CC double bonds, one C–C and one C–O single bond were built in this one-pot reaction. The diversity-oriented strategy was also
建立了Rh( II )/硼试剂共催化的前所未有的转化,用于在温和条件下通过使用氧鎓叶立德捕获丙二烯碳阳离子,在温和条件下快速构建多取代共轭二烯酮,产率高达85%。在这个一锅反应中建立了两个 C C 双键、一个 C-C 和一个 C-O 单键。还建立了以多样性为导向的策略,以通过底物依赖性方式合成炔醚和二氢呋喃衍生物。