Ketone-Catalyzed Decomposition of Peroxynitrite via Dioxirane Intermediates
作者:Dan Yang、Yeung-Chiu Tang、Jian Chen、Xue-Chao Wang、Michael D. Bartberger、K. N. Houk、Leif Olson
DOI:10.1021/ja984358v
日期:1999.12.1
Ketones are found to be catalysts for the decomposition of peroxynitrite. Kinetics, product studies, and B3LYP transition-state calculations together provide consistent evidence for a mechanism involving the formation of dioxirane intermediates.
The Rate of Homolysis of Adducts of Peroxynitrite to the CO Double Bond
作者:Gábor Merényi、Johan Lind、Sara Goldstein
DOI:10.1021/ja011799x
日期:2002.1.1
and nitrogen dioxide radicals. The yield of free radicals was determined to be about 15% with both carbonyl compounds at low and high pH, while the remainder collapses to molecular products in the solvent cage. The rate constants for the homolysis of the adducts vary from ca. 3 x 10(5) to ca. 5 x 10(6) s(-1), suggesting that they cannot act as oxidants in biological systems. This small variation around