PHOTODIMERIZATION OF THYMINE AND URACIL ON FILTER PAPER*
- 1 October 1963
- journal article
- Published by Wiley in Photochemistry and Photobiology
- Vol. 2 (4) , 455-460
- https://doi.org/10.1111/j.1751-1097.1963.tb08902.x
Abstract
Abstract—Thymine and uracil dimerized by ultraviolet irradiation (principally at 253 7 mμ) on filter paper and on quartz fiber sheet show a fairly good yield. These irradiation products were identical with the photodimers prepared from frozen aqueous solution. Thymine and uracil dimer in an aqueous solution reverted to the original pyrimidines by the ultraviolet irradiation with quantum yields of 0.65 and 0.50 respectively. Uracil dimer was rather labile towards hot alkaline solution. In neutral and acidic media, both dimers were quite stable. Photodimers of cytosine and isocytosine were not obtained.Keywords
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