4.6 Article

Taking Advantage of Ortho- and Peri-Substitution to Design Nine-Membered P,O,Si-heterocycles**

期刊

CHEMISTRY-A EUROPEAN JOURNAL
卷 27, 期 44, 页码 11391-11397

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202101184

关键词

heterocycles; P-chemistry; Si-chemistry; fluorescence

资金

  1. Ministere de la Recherche et de l'Enseignement Superieur
  2. CNRS
  3. Region Bretagne
  4. French National Research Agency [ANR-16-CE05-0003-01]
  5. Agence Nationale de la Recherche (ANR) [ANR-16-CE05-0003] Funding Source: Agence Nationale de la Recherche (ANR)

向作者/读者索取更多资源

The newly synthesized family of phosphine-disiloxane compounds with peri-substituted naphthyl/acenaphthyl scaffolds are structurally diverse and hold potential for further chemical research and applications. Despite strong steric congestion, the reactivity of the P-atom remains intact, indicating promising possibilities for applications.
A family of cyclic phosphine-disiloxane featuring peri-substituted naphthyl(Nap)/acenaphthyl(Ace) scaffolds has been prepared and fully characterized including X-ray structure, which enables a detailed structural analysis. This straightforward synthesis takes advantage of both ortho- and peri-substitution of Nap/Ace-substituted phosphine oxides. The synthetic method allows diversifying the polycyclic aromatic platform (Nap and Ace) as well as the Si substituents (Me and Ph). Despite a strong steric congestion, the P-atom remains reactive toward oxidation or coordination. In particular, Au(I) complex could be prepared. All the compounds display absorption/luminescence in the UV-Vis range. Surprisingly, the P-trivalent derivatives display unexpected luminescence in the green in solid-state.

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