Synthesis and Structure of the First 1,2σ5-Selenaphosphirane
摘要:
A 1,2sigma5-selenaphosphirane bearing the Martin ligand was synthesized. Its structure in both the solid and the solution state was established by X-ray crystallographic analysis and NMR measurements, respectively. The selenaphosphirane has a polar P-Se bond, and the selenium atom is negatively charged. In the solution state, the degree of polarization of the P-Se bond depends on the acceptor number of the solvents.
Isolation of a Cyclic Intermediate in the Reaction of a Phosphorus Ylide with Elemental Sulfur: Synthesis, Structure, and Reactivity of a 1,2σ<sup>5</sup>-Thiaphosphirane
作者:Shohei Sase、Naokazu Kano、Takayuki Kawashima
DOI:10.1246/cl.2004.1434
日期:2004.11
The reaction of a phosphorus ylide with elemental sulfur gave a pentacoordinate thiaphosphirane, which was characterized by X-ray crystallographic analysis, and it was allowed to react with element...