Graphitic-C3N4 is shown for the first time to catalyse photoacetalization of aldehydes/ketones with alcohols to acetals in high yields using visible light under ambient conditions; transient charge separation over the material is effective to catalyse the reaction in the absence of Lewis or Brønsted acids, giving a new green alternative catalyst.
M. Abdullah Khan, I. F. Teixeira, M. M. J. Li, Y. Koito and S. C. E. Tsang, Chem. Commun., 2016, 52, 2772 DOI: 10.1039/C5CC08344C
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