to the designed ynones triggers γ′[C(sp3)−H] functionalization, leading to the formation of heteroaryl‐based ortho‐quinodimethane (oQDM) intermediates that undergo carbocyclization to provide cyclopentannulated heteroarenes in good yields and excellent stereoselectivities. Deuterium‐labeling experiments substantiated the proposed reaction mechanism as well as the speculated epimerization.
对于
环戊二烯并[一种新方法b通过
金属和无定向基团的γ'[C(
SP杂
芳烃的]环3)-H]官能化和ynones的分子内加氢烷基化得到了发展。在史无前例的事件中,将有机膦亲核加成到设计的炔酮上会触发γ'[C(
SP 3)-H]功能化,导致形成杂芳基邻
喹啉二
甲烷(oQ
DM)中间体,该中间体经过碳环化作用以提供环戊环杂
芳烃具有良好的收率和出色的立体选择性。
氘标记实验证实了拟议的反应机理以及推测的差向异构。