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SYNTHESIS AND USE OF BENZOTRIAZOLE-BASED ULTRAVIOLET ABSORBERS EACH HAVING CARBANILIC ACID ESTER STRUCTURE, DICARBAMIDE ACID DIESTER STRUCTURE, OR SULFONIC ACID ESTER STRUCTURE
SYNTHESIS AND USE OF BENZOTRIAZOLE-BASED ULTRAVIOLET ABSORBERS EACH HAVING CARBANILIC ACID ESTER STRUCTURE, DICARBAMIDE ACID DIESTER STRUCTURE, OR SULFONIC ACID ESTER STRUCTURE
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机译:具有苯甲酸酯结构,双酰胺酸二酯结构或磺基酸酯结构的苯并三唑基紫外吸收剂的合成和使用
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摘要
PROBLEM TO BE SOLVED: To synthesize benzotriazole-based ultraviolet absorbers each having a carbanilic acid ester structure, a dicarbamide acid ester structure, or a sulfonic acid ester structure, by chemically modifying an OH group at C1-position of 4-(2H-benzotriazol-2-yl)resorcinol or 4-(5-chloro-2H-benzotriazol-2-yl)resorcinol with each of several kinds of aromatic isocyanate, three kinds of diisocyanate, or several kinds of aromatic sulfonyl chloride; and to examine the effectiveness of the obtained product.;SOLUTION: The desired reaction is achieved by looking for a reaction catalyst, and regarding what is obtained, physical properties etc., were mainly investigated. Regarding the ultraviolet absorber having a dicarbamide acid diester structure, one having a wide absorption wavelength range in ultraviolet absorption is found out. Moreover, regarding the ultraviolet absorber having a sulfonic acid ester structure, one being almost satisfactory in many required physical properties, including economical efficiency in synthesis, is obtained.;COPYRIGHT: (C)2008,JPO&INPIT
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