Centro di Studio sulla Stabilita'' e Reattivita'' dei Composti di Coordinazione del C.N.R. and Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Universita'' di Padova, Via Marzolo 1, Padua, Italy
Abstract:
The reactions of AuBr?4 and Au(CN)2Br?2 with uracil in water produce gold(I) and 5-bromouracil and/or 5-bromo-6-hydroxy-5,6-dihydrouracil. The observed kinetics of the reactions are consistent with a mechanism involving a fast redox pre-equilibrium followed by bromination of the pyrimidine (X?= Br? or CN?):
