Hydroxylation of thymine (1)to give thymineglycol (3) is remarkably promoted by the addition of nitro compounds (2a–f) in the γ-radiolysis of the N2O-saturated aqueoussolution, although overall decomposition of 1 is depressed to some extent. The G-value of 3, increases linearly with increasing the one-electron reduction potential of 2a-f.
Effect of Fe(III) Ions on the γ-Radiolysis of Thymine
作者:S. N. Bhattacharyya、P. C. Mandal、S. Chakrabarti
DOI:10.1246/bcsj.63.3001
日期:1990.10
Aqueous solutions of thymine (T) in the presence of Fe(III) were irradiated under deaerated conditions at pH ≈2. The products of radiolysis were separated by two dimensional thin-layer chromatography. In the absence of any metal ion, the G(-T) is 2.6 but when Fe(III) is present during radiolysis, the G(-T) increases significantly and reaches a limiting value of 3.2. The yields of the hydroxylated products