Prebiotic Adenine Revisited: Eutectics and Photochemistry

  title={Prebiotic Adenine Revisited: Eutectics and Photochemistry},
  author={L. Orgel},
  journal={Origins of life and evolution of the biosphere},
  • L. Orgel
  • Published 2004
  • Chemistry, Medicine
  • Origins of life and evolution of the biosphere
  • Recent studies support an earlier suggestion that, if adenine was formed prebiotically on the primitive earth, eutectic freezing of hydrogen cyanide solutions is likely to have been important. Here we revisit the suggestion that the synthesis of adenine may have involved the photochemical conversion of the tetramer of hydrogen cyanide in eutectic solution to 4-amino-5-cyano-imidazole. This would make possible a reaction sequence that does not require the presence of free ammonia. It is further… CONTINUE READING
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