Synthesis of Annelated Phospholes through Intramolecular CH Activation by Monovalent Phosphorus
作者:Xinda Wei、Zongming Lu、Xu Zhao、Zheng Duan、Francois Mathey
DOI:10.1002/anie.201410603
日期:2015.1.26
complexes [Ar‐Ar‐P‐W(CO)5] (Ar‐Ar: biaryl or an analogue thereof) undergo a spontaneous insertion of the phosphorus atom into the vicinal CH bonds to give annelated phospholes. Twelve examples are described, including biphenyl, thienyl, pyrrolyl, and benzofuryl groups as biaryl moieties. The activation energy of the insertion reaction is quite low (about 2 kcal mol−1).
电子末端亚膦配合物[氩的Ar-P-W(CO)5 ](氩的Ar:联芳基或其类似物)经历的磷原子为邻位的C自发插入 H键,得到稠合phospholes。描述了十二个实例,包括联苯基,噻吩基,吡咯基和苯并呋喃基作为联芳基部分。插入反应的活化能非常低(约2kcal mol -1)。