PHOTOCHEMICAL DECOMPOSITION OF TpBU
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چکیده
Irradiation of the dinucleotide TpBU at all wavelengths from 240 to 295 m/u produces a debrominated photoproduct and two minor products. The main compound has an absorption maxi mum exactly at the same wavelength as the parent compound, but with approximately half the value of the extinction coefficient. It cannot be reverted by short wavelengths, such as 240 m/j,. Consistent with our observations is an intramolecular dimer with cyclobutene structure.
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