作者:Rongqiang Tian、Yanbo Mei、Zheng Duan、François Mathey
DOI:10.1021/om400637j
日期:2013.10.14
Transient terminal phosphinidene complexes [RP-W(CO)(5)] dimerize in the presence of copper chloride, and the dimers react in situ with triphenylphosphine-borane to give the disecondary diphosphine complexes [RPH-PHR][W(CO)(5)](2). When R = CH2CH2Cl, a cyclization takes place to give the diphosphirane complex. A 1,2-diphospholane is obtained for R = Ph by further reaction with 1,3-dibromopropane in the presence of aqueous K2CO3.