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Photochemistry of 6-Formylpterin in Alkaline Medium

✍ Scribed by Andrés H. Thomas; Gustavo Suárez; Franco M. Cabrerizo; Alberto L. Capparelli

Publisher: John Wiley and Sons
Year: 2001
Tongue: German
Weight: 546 KB
Volume: 84
Category: Article
ISSN: 0018-019X
DOI: 10.1002/1522-2675(20011219)84:12<3849::aid-hlca3849>3.0.co;2-f

No coin nor oath required. For personal study only.

✦ Synopsis

Dedicated to Professor Dr. Andre¬ M. Braun on the occasion of his 60th birthday 6-formylpterin solutions at pH 11 were photolyzed at 350 nm at room temperature. The photochemical reactions were followed by UV/VIS spectrophotometry, thin layer chromatography (TLC), and highperformance liquid chromatography (HPLC). In the presence of oxygen, 6-carboxypterin is the only photoproduct detected by the analytical techniques mentioned. In the absence of oxygen, a new compound showing an absorbance maximum at 480 nm is observed. The latter compound is thermally oxidized very fast in the presence of oxygen to 6-carboxypterin. The quantum yields of substrate disappearance and of photoproduct formation are reported

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