Synthesis of N-aryl-substituted iminophosphoranes and NMR spectroscopic investigation of their acid–base properties in acetonitrile

T Rodima, V Mäemets, I Koppel

Index: Rodima, Toomas; Maeemets, Vahur; Koppel, Ilmar Journal of the Chemical Society, Perkin Transactions 1, 2000 , # 16 p. 2637 - 2644

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Citation Number: 31

Abstract

A series of RNP (Pyrr) 3 iminophosphoranes (P1 phosphazenes), where R is amino-, α- naphthyl-or substituted phenyl group, is prepared by the Kirsanov reaction and characterized by FT NMR and other properties. The ΔpKa-values of the 12 different synthesized phosphazenes and C6H5NP (NMe2) 3 are determined in acetonitrile relative to the reference bases using 13C NMR spectroscopy. The obtained pKa-values are ...