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A Comparison between Kinetic Parameters from the Synthesis of Tris(p-nitrophenyl)phosphite and Tris(p-nitrophenyl)phosphate Using Reaction Calorimetry
journal contribution
posted on 2003-10-09, 00:00 authored by Rafael C. Seiceira, Carlos F. P. Machado e Silva, Luciana R. M. Estevão, João F. Cajaiba da SilvaTris(p-nitrophenyl)phosphite was prepared by a modification
of a “one-pot” methodology developed for the preparation of
triaryl phosphates. This exothermic reaction was performed in
a Mettler RC-1 calorimeter. The principal aim of this work
was to compare the reactivity of phosphorus trichloride and
phosphorus oxychloride in their reactions with sodium p-nitrophenoxide. The reaction rate and the reaction rate constant
for the synthesis of tris(p-nitrophenyl)phosphite were evaluated
and compared to the obtained values for the tris(p-nitrophenyl)phosphate synthesis. Phosphorus trichloride was found to react
faster than phosphorus oxychloride, but the reaction with the
phosphorus oxychloride proved to be more exothermic.