(2)] The first examples of uncharged aryl substituted fluorinated hydridophosphazenes, N3P3F4(Ar)H [Ar — C6H5 (1), pwere obtained in an unprecedented manner upon fluorination of diaryloctachlorobi(cyclophosphazenes) ðN6P6Cl8ðArÞ2Þ [Ar — C6H5, p-ClC6H4] using KF in acetonitrile. The compounds (1) and (2) were stable to air and moisture, and were characterized by spectral and analytical methods. ...

Only a limited number of spiro compounds has been reported in which both components have a phosphazene or phosphazenelike skeleton. The first member of this class, viz. NP[(NPCl2)2NCH3](NPCl2)2 (Fig. l.A), was prepared by Lehr [2] by means of a Kirsanov conversion of (NPC12)2NP(NH2)2 into (NPC12)2NP(NPC13)2, followed by a ring closure reaction using [(CH3)3Si]2NCH3. Two other routes have been d...

The successful activation observed when using Bu(t) P(4) phosphazene base and thiophenol or bisthiols for the anionic ring opening polymerization (ROP) of di-n-propyl cyclopropane-1,1-dicarboxylate is described. Well-defined monofunctional or difunctional polymers with a very narrow molecular weight distribution were obtained through a living process. Quantitative end-capping of the propagating...

Biomaterials based on the polymers of lactic acid and glycolic acid and their copolymers are used or studied extensively as implantable devices for drug delivery, tissue engineering and other biomedical applications. Although these polymers have shown good biocompatibility, concerns have been raised regarding their acidic degradation products, which have important implications for long-term imp...

Lithium-Ion Batteries The cover shows cyclic fluorinated phosphazene compounds as additional stabilizing additives in a state-of-the-art electrolyte for SiOx/C-based lithium ion battery cells. In article number 2203503 Aurora Gomez-Martin, Tobias Placke, and co-workers demonstrate the beneficial properties of these terms gassing, stabilizing, electrochemical performance solid interphase forming...

The t-Bu-P4 base was found to be an excellent catalyst for the condensation of trimethylsilylacetate or trimethylacetonitrile with carbonyl compounds to form functionalized alkenes and beta-enaminoesters were also synthesized by the condensation with formanilides.