Tris(Trimethylsilyl)Phosphine in Reaction with Bis(Phenylenedioxa)Chlorophosphorane. The Way to Phosphoranylphosphines |
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| Authors: | Elena V Popova Vladimir F Mironov Yuliya M Volodina Nail M Azancheev Eleonora A Ishmaeva Igor I Patsanovsky |
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| Institution: | 1. A.E. Arbuzov Institute of Organic and Physical Chemistry , Kazan , 420088 , Russia;2. Kazan State University , Kazan , 420008 , Russia |
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| Abstract: | Abstract Tris(trimethy1silyl)phosphine (1) is the key reagent in the synthesis of one- and two-coordinated phosphorus compounds. Its characteristic features are extreme reactivity, high nucleophility of phosphorus atom and the P-Si bonds lability. The interaction of phosphine (1) with bis(catecho1)chlorophosphome (2) has been studied by dynamic 31P NMR method. On the reagents ratio 1:1 at first the nucleophilic substitution of chlorine occurs leading to formation of phosphome (3) with PIII-Pv bond (σP(III) -117.0, σP(V) 17.4 ppm, 1Jpp 305.0 Hz) which converts then into more stable 2-(trimethylsiloxyphenyloxy)-4,5-bem- 1,3,2-dioxaphospholane (4). |
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