
TY  - JOUR
A1  - Amiet, RG 
A1  - Evans, NA 
A1  - Wynne, PM 
T1  - Photooxidation of 2-Phenylbenzotriazoles
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1989
VL  - 42
IS  - 3
SP  - 441
EP  - 445
KW  - 
UR  - https://doi.org/10.1071/CH9890441 
N2  - Irradiation, with ultraviolet light, of 2-phenylbenzotriazole in aerated solvents resulted in oxidation of the benzo ring to yield the diacid 2-phenyl-1,2,3-triazole-4,5-dicarboxylic acid. A possible intermediate, 2-phenylbenzotriazole-4,7-dione, also yielded the diacid on photooxidation . The methyl ether of the commercial photostabilizer  Tinuvin P undergoes an analogous reaction to produce the corresponding diacid. 
ER  -

