Synthesis of phospholes and 1,1′-biphospholes mediated by zirconacyclopentadienes and PBr3
作者:Chunxiang Qin、Xin Xie、Gaonan Wang、Xueshun Jia、Yuanhong Liu
DOI:10.1016/j.tetlet.2019.151388
日期:2020.1
The efficient synthesis of phospholes through the reactions of Grignard reagents with in situ-generated 1-bromophospholes has been developed. This method allows the easy substituent variation at the phosphorus atom of the phospholes. The 1,1’-biphospholes can also be conveniently prepared through Zn-promoted debromo-dimerization of 1-bromophospholes. The gold-phosphole complexes of LAuCl were also
Formation of a diphosphine: synthesis and molecular structure of bis(tetraphenylbutadienyl)diphosphine, (Ph4C4)P–P(C4Ph4)
作者:Jason K. Vohs、Pingrong Wei、Jianrui Su、Brent C. Beck、Sonya D. Goodwin、Gregory H. Robinson
DOI:10.1039/b001257m
日期:——
Reaction of 1,4-dilithiotetraphenylbutadiene with phosphorus(III) bromide affords bis(tetraphenylbutadienyl)diphosphine, (Ph4C4)P–P(C4Ph4), with a phosphorus–phosphorus bond length of 2.2051(11) A.