Synthesis and Molecular Structure of Het
β
Gamper, Siegfried F. ;Schmidbaur, Hubert
π
Article
π
1993
π
Wiley (John Wiley & Sons)
π
English
β 389 KB
Arsadiphosphabenzenes 1,l-Bis[(diphenylphosphanyl)methyl]ethene (3) reacts with PC13 or AsCl, in the presence of SnC12 as a reducing agent to form cationic heterocycles in which the two newly generated phosphonium centers are bridged by two-coordinate, negatively charged phosphorus (4a) or arsenic (