College of Chemistry and Materials Science, Jinan University, 510632, Guangzhou, P.R. China.
Lehn Institute of Functional Materials (LIFM), School of Chemistry, Sun Yat-Sen University, 510275, Guangzhou, P.R. China.
Chemistry. 2018 Jun 12;24(33):8432-8437. doi: 10.1002/chem.201801225. Epub 2018 May 15.
With respect to the well-developed chemistry of pyridines, that of phosphinines is in its infancy. There are still challenges to be overcome with respect to the development of simple syntheses and the application of phosphinine derivatives. Here, we show that sodium phosphinin-2-olate is a valuable building block to prepare multidentate phosphinine ligands, which in turn can be employed for the preparation of metal complexes. These Pd and Rh complexes were fully characterized, including by NMR spectra and single-crystal X-ray diffraction studies, which clearly demonstrate that molecules R P(O-phosphinine) with one, two, and three phosphinines (x=1, 2, 3) can be tethered to a central phosphorus donor center to give bis-, tris-, and tetradentate ligands.
就吡啶类化合物高度发达的化学性质而言，磷杂环戊二烯的化学性质仍处于起步阶段。在开发简单的合成方法和应用磷杂环戊二烯衍生物方面，仍然存在一些挑战。在这里，我们证明了磷杂环戊二烯-2-醇盐是制备多齿磷杂环戊二烯配体的有价值的砌块，进而可以用于制备金属配合物。这些 Pd 和 Rh 配合物已通过 NMR 光谱和单晶 X 射线衍射研究进行了全面表征，这些研究清楚地表明，具有一个、两个和三个磷杂环戊二烯（x=1、2、3）的分子 R P(O-磷杂环戊二烯)可以连接到一个中心磷给体中心上，从而得到双齿、三齿和四齿配体。
