PHOTOCYCLOADDITION OF 5,7-DIMETHOXYCOUMARIN TO THYMINE |
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| Authors: | Sang Chul Shim Kyu Ho Chae |
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| Institution: | Department of Chemistry, The Korea Advanced Institute of Science, P.O. Box 150, Cheongyangni, Seoul, Korea |
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| Abstract: | Abstract— C4--Photocycloaddition of 5,7-dimethoxycoumarin (DMC) to thymine (λ≥ 300 nm) was studied in dioxane-water solution, in aqueous frozen state, and solid film state. The major product was isolated and characterized by physical methods. Elemental analysis data, spectral analyses, and photo-splitting of the product indicate the product to be a 1:l C4--cycloadduct of DMC and thymine. |
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