2,4,6-Triphenylphosphinine and 2,4,6-triphenylposphabarrelene revisited: synthesis, reactivity and coordination chemistry.
2,4,6-Triphenylphosphinine and 2,4,6-triphenylposphabarrelene revisited: synthesis, reactivity and coordination chemistry.
复制标题
重新审视 2,4,6-三苯基膦和 2,4,6-三苯基posphabarrelene：合成、反应性和配位化学。
作者：
M. Rigo;J. Sklorz;N. Hatje;F. Noack;M. Weber;J. Wiecko;C. Müller
本文对2，4，6-三苯基膦的合成进行了回顾，并建立了一个以良好产率制备这种低配位磷化合物的一般方法。这允许研究2，4，6-三芳基膦的化学的几个方面，例如与原位生成的苯炔反应得到2，4，6-三苯基磷杂双环烯。相应的2，4，6-三苯基磷barrelene-selenide可以表征晶体学的第一次和这种笼状化合物的结构和电子性质相比，经典的三芳基膦可以进行评估。此外，还制备了2，4，6-三苯基膦和2，4，6-三苯基磷杂双环烯的[（L）W（CO）5）]配合物，并通过X射线晶体学进行了表征。这使得第一次直接比较这些相关的磷化合物，配位到相同的金属片段的结构。
The synthesis of 2,4,6-triphenylphosphinine has been revisited and a general protocol for the preparation of such low-coordinate phosphorus compounds in good to excellent yields could be established. This allows to investigate several aspects of the chemistry of 2,4,6-triarylphosphinine, such as the reaction with in situ generated benzyne to give 2,4,6-triphenylphosphabarrelene. The corresponding 2,4,6-triphenylphosphabarrelene-selenide could be characterized crystallographically for the first time and the structural and electronic properties of this cage-compound in comparison to classical triarylphosphines could be evaluated. Moreover, [(L)W(CO)5)] complexes of both 2,4,6-triphenylphosphinine and 2,4,6-triphenylphosphabarrelene were prepared and characterized by means of X-ray crystallography. This allowed for the first time a direct structural comparison of these related phosphorus compounds, coordinated to the same metal fragment.