Zhang, Cuiping Zhang, Hongming L. Mercado, Ramil-Marcelo Wisian-Neilson, Patty Synthesis of (Silylamino)Phospholenes and their Derivatives: Synthesis of a New Spirocyclic Phosphazene <div><p>Phospholenes containing one or two methyl groups at the 3 and 4 positions on the heterocyclic ring and bis(trimethylsilyl)amino groups on phosphorus were prepared by treating 1-bromo or 1-chlorophospholenes with lithium bis(trimethylsilyl)amide. Several P(V) derivatives of these 2-and 3-phospholenes were prepared by oxidation with hexachloroethane. The chloro groups in the resulting P-chloro-N-trimethylsilyl derivatives were subsequently replaced by phenoxy groups to afford P-phenoxy-N-trimethylsilyl substituted ring compounds. The P-phenoxy-N-trimethylsilyl derivative was hydrolyzed to the corresponding P-amino phosphine oxide; treated with trifluoroethanol to form a new trispirocyclic phosphazene; and copolymerized with Me<sub>2</sub>P(OPh) = NSiMe<sub>3</sub> to give a new phosphazene copolymer containing the phospholene ring (M<sub>w</sub> = 3.8 × 10<sup>4</sup> Da). These new compounds were characterized by <sup>1</sup>H, <sup>13</sup>C, and <sup>31</sup>P NMR spectroscopy. The spirocyclic phosphazene was also characterized by X-ray crystallography.</p></div> Synthesi;2p;13 C;chloro groups;bi;methyl groups;31 P NMR spectroscopy;1 H;derivative;ring compounds;phospholene ring;trispirocyclic phosphazene;4 positions;phosphazene copolymer;heterocyclic ring;New Spirocyclic Phosphazene Phospholenes;NSiMe 3;phenoxy groups;spirocyclic phosphazene 2015-12-02
    https://tandf.figshare.com/articles/journal_contribution/Synthesis_of_Silylamino_Phospholenes_and_their_Derivatives_Synthesis_of_a_New_Spirocyclic_Phosphazene/1621916
10.6084/m9.figshare.1621916.v1