Photochemical Cleavage of the Axial Group Attached to the Central Carbon Atom of Triazatriangulene
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Photocleavage reaction of triazatriangulene (TATA) leuco derivatives bearing axial substituents proceeded quantitatively in polar solvents with quantum yields (Φ<sub>r</sub>) of up to 0.56. The photoreaction can easily be detected by the red color and yellow fluorescence originating from the photogenerated TATA cation. Electron-withdrawing groups on the axial substituent effectively suppress the photoreaction, in a particular case, Φ<sub>r</sub> became less than 0.01.
- Chemistry Letters
Chemistry Letters 44(1), 76-78, 2015
The Chemical Society of Japan