Kunchur Harish S, Radhakrishna Latchupatula, Pandey Madhusudan K, Balakrishna Maravanji S
Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
Chem Commun (Camb). 2021 May 13;57(39):4835-4838. doi: 10.1039/d1cc01591e.
New bisphosphine o-Ph2PC6H4C(O)N(H)C6H4PPh2-o (1) (Bala-HariPhos) showed a unique reactivity towards Pd(ii) resulting in a 1,2-azaphospholene complex, involving a tandem P-C bond cleavage, P-N bond formation and cyclization process via the elimination of PhH. Mechanistic details were investigated using NMR spectroscopy, DFT calculations and kinetic data, and by SCXRD analysis. It involves the reductive elimination from a tautomerised complex to form a phosphonium salt followed by oxidative addition.
新型双膦化合物邻二苯基膦基苯甲酰基苯胺（1）（巴拉 - 哈里膦）对钯（II）表现出独特的反应活性，通过消除苯形成了一个涉及串联磷 - 碳键断裂、磷 - 氮键形成和环化过程的1,2 - 氮磷杂环戊烯配合物。利用核磁共振光谱、密度泛函理论计算和动力学数据以及单晶X射线衍射分析研究了反应机理细节。该过程涉及从互变异构体配合物进行还原消除形成鏻盐，随后进行氧化加成。
