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2-(2-Hydroxyphenyl)benzotriazoles. II. Electrophilic substitution reactions on the molecule of 2-(2-hydroxy-5-methylphenyl)benzotriazole and ultraviolet spectra of the products

J. Běluša, J. Mazánková, V. Kováčik, E. Rabušic, and M. Potáček

Department of Organic Chemistry, Faculty of Natural Sciences, J. E. Purkyne University, 611 37 Brno

 

Abstract:  2-(2-Hydroxy-3-Y-5-methylphenyl)benzotriazoles were prepared by electrophilic substitution reactions. Constitutions of the prepared compounds were proved by synthesis and n.m.r. and mass spectrometry. The effect of substituents on the absorption in the near u.v. region was followed regarding the use of these compounds as photostabilizers.

Full paper in Portable Document Format: 285a680.pdf

 

Chemical Papers 28 (5) 680–685 (1974)

Tuesday, December 06, 2022

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