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Oxidation of Benzylamines Using C70 as a Photocatalyst

The Yamakoshi group has reported an effective photooxidation of benzylamines and tetrahydroisoquinolines using fullerene C70 as a catalyst. In the presence of C70 under oxygen atmosphere, benzylamine derivatives can be oxidized to afford imine derivatives in high yields. A similar reaction proceeds when using fullerene C60 or tetraphenylporfyrin (TPP) as a catalyst, but does not have some of the advantages of C70 such as faster reaction times, longer light wavelengths, and lower catalyst loading. Furthermore, the current only reported use of C70, the photo-cyanation to an imine moiety, proceeds in the presence of trimethylsilylcyanide.

B1694

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