Otto Rademacher

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Coumarin and 6-alkylcoumarins (alkyl = C(1) to C(16)) were photodimerized in homogeneous solvents differing in polarity and in aqueous micellar solutions. The four possible photodimers, syn head-to-head (hh), anti head-to-head, syn head-to-tail (ht), and anti head-to-tail, were identified through a combination of X-ray analysis and NMR spectroscopy. In(More)
BACKGROUND Skin neoplasms are the most frequent types of neoplasms in white populations, and their incidence is increasing. Epidemiological studies have shown that the major environmental aetiological factor for their development is sunlight exposure. Sun protection programmes are urgently needed to raise awareness of the health hazards of ultraviolet(More)
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