Kinetics and Mechanism for Reduction of Tetrabromoaurate(III) by Uridine

DOI: 10.1039/DT9830002329

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2329 - 2332 (1983)

Update date:2022-08-02

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Ettorre, Renato

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Article abstract of DOI:10.1039/DT9830002329

The reaction of tetrabromoaurate(III) with uridine in water occurs with a 1:1 stoicheiometry, producing gold(I) and 5-bromo-6-hydroxy-5,6-dihydrouridine.The reduction of AuBr4(1-), studied in the presence of uridine, bromide, and acid in excess with respect to gold, and in some cases also in the presence of added reaction products, obeys the rate expression -d/dt=k_obs./(_τ-), where _τ is the total gold concentration (III+^I.The rate k_obs. is linearly dependent on the uridine concentreation and invariant of the bromide and hydrogen-ion concentrations.The observed redox kinetics are consistent with a mechanism involving reductive elimination of bromine from tetrabromoaurate(III) followed by halogenation of pyrimidine.

Full text of DOI:10.1039/DT9830002329

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Kinetics and Mechanism for Reduction of Tetrabromoaurate(III) by Uridine

DOI: 10.1039/DT9830002329

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Article abstract of DOI:10.1039/DT9830002329

Full text of DOI:10.1039/DT9830002329

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