A method for the photoinduced evolution of atomic oxygen from pyridazine N-oxides was developed. This underexplored oxygen allotrope mediates arene C–H oxidation within complex, polyfunctional molecules. A water-soluble pyridazine N-oxide was also developed and shown to promote photoinduced DNA cleavage in aqueous solution. Taken together, these studies highlight the utility of pyridazine N-oxides as photoactivatable O(³P) precursors for applications in organic synthesis and chemical biology.

中文翻译：

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哒嗪氮氧化物作为活性氧的光活化替代物

开发了一种从哒嗪N-氧化物光诱导析出原子氧的方法。这种尚未开发的氧同素异形体介导复杂的多功能分子内的芳烃 C-H 氧化。还开发了一种水溶性哒嗪N-氧化物，并显示其可促进水溶液中的光诱导 DNA 裂解。总而言之，这些研究强调了哒嗪N-氧化物作为可光活化的 O( ³ P) 前体在有机合成和化学生物学中的应用。