Reactivity of N Phenyl Iminophosphoranes Towards Ozone: Evidence of Trioxo Azaphospholane Intermediates

F El Khatib, J Bellan, M Koenig

Index: El Khatib, Fayez; Bellan, Jacques; Koenig, Max Phosphorus, Sulfur and Silicon and Related Elements, 1998 , vol. 134-135, p. 391 - 398

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Abstract

The ozonation of N-phenyl-iminophosphoranes R3P= NPh 1a-b leads, after the PN bond breakage, to the corresponding phosphorus oxides 2a-b with the formation of complex adducts 3a-b which precipitate at room temperature. The stoichiometry and the reaction mechanism depend on the nature of substituents R linked to the phosphorus atom. For R= Ph we detected the phosphonium intermediate 5a, whereas for R= OEt the ...