FUNCTIONAL POLYMERS .60. CHEMICAL-STRUCTURE ULTRAVIOLET-SPECTRUM RELATIONSHIP OF 2(2-HYDROXYPHENYL)2H-BENZOTRIAZOLES - SYNTHESIS OF NOVEL 2(2-HYDROXYPHENYL)2H-BENZOTRIAZOLES

POLYMER

卷:36

Note

SUSTIC, A ; VOGL, O

关键词: UV-ABSORBING POLYMER;    SYNTHESIS;    CHARACTERIZATION;   

DOI  :  10.1016/0032-3861(95)99443-X

来源: Elsevier

【 摘 要 】

The synthesis of several u.v. absorbers of the 2(2-hydroxyphenyl)2H-benzotriazole category is reported. The compounds are of three types: 2(2-hydroxyphenyl)2H-benzotriazoles with one or two substituents located in the benzotriazole moiety of the molecule; 2(2-hydroxyphenyl)2H-benzotriazoles with a substituent in the hydroxy-containing phenyl part of the molecule; and a naphthalene derivative. Syntheses of the 2(2-hydroxyphenyl)2H-benzotriazoles were carried out by the diazotization of a 2-nitroaniline derivative followed by reduction and cyclization, yielding the products in moderate yield. The characterization of the products was carried out by i.r., u.v. and C-13 n.m.r. spectroscopy, and included the determination of their molecular weights by elemental analysis and potassium ionization of desorbed species.

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