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含糖基水溶性紫外吸收剂的合成与表征 被引量:3

Synthesis and Characterizations of Water-Soluble Glycosylated UV-Absorber
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摘要 以三聚氯氰(TCT)、2,4-二羟基二苯甲酮(UV-0)、双丙酮葡萄糖为原料,经三步反应合成一种具有反应性基团的水溶性紫外吸收剂3-(2-(2-羟基苯基苯甲酮-4-氧基)-4-氯-1,3,5-三嗪-6-氧基)-1,2-异丙叉-α-D-葡萄糖(UV-DTM),产物的结构经IR、NMR和MS表征。探讨了每一步反应的条件对反应产率的影响。合成3-(4,6-二氯-1,3,5-三嗪-2-氧基)-1,2,5,6-双异丙叉-α-D-葡萄糖(DTDT)的优化反应条件为:n(三聚氯氰)∶n(双丙酮葡萄糖)∶n(Na OH)=0.9∶1∶1.7,在丙酮和水的混合体系中0℃下反应8h,产率73%。合成3-(2-(2-羟基苯基苯甲酮-4-氧基)-4-氯-1,3,5-三嗪-6-氧基)-1,2,5,6双异丙叉-α-D-葡萄糖(UV-DT)的优化条件为:n(DTDT)∶n(UV-0)∶n(Na OH)=1∶1.1∶1,在丙酮和水的混合体系中30℃下反应2h,产率74%。合成UV-DTM的优化条件为:每1mmol UV-DT与0.5m L盐酸(36%)在THF体系中25℃下反应5h,产率74%。UV-DTM的紫外吸收性能在240-400 nm内表现良好,水溶性得到大幅改善。 A reactive water-soluble UV-absorber, (4-( (4-chloro-6-( ((2R,3R,4R,5S) -2-(2,2-dimethyl-1,3- dioxolan-4-yl) -4, 5-dihydroxytetrahydrofuran-3-yl ) oxy ) -1, 3, 5-triazin-2-yl ) oxy ) -2-hydroxyphenyl ) ( phenyl ) methanone (UV-DTM) , was synthesized by using 2,4-dihydroxy benzophenone ( UV-0 ) , diacetone glucose and 2,4, 6-trichloro-1,3,5-triazine (TCT) as the main raw materials. The structure was confirmed by IR, NMR and MS. The highest yield ( 73 % ) of DTDT can be obtained in the conditions: n (TCT) : n ( diacetone glucose) : n (NaOH) = 0.9 : 1:1.7 and 0 ℃ , 8 h. The highest yield (74%) of UV-DT can be obtained in the conditions: n (DTDT) :n (UV- 0):n(NaOH) =1:1. 1:1 and 30 ℃, 2 h. The highest yield (74%) of UV-DTM can be obtained in the conditions: 0.5 mL hydrochloric acid (36%) with each millimole of UV-DT, 25 ℃ , 5 h. The UV-absorption of UV-DTM in 240 400 nm was strong, and its water solubility was improved.
出处 《化学通报》 CAS CSCD 北大核心 2016年第12期1161-1165,共5页 Chemistry
关键词 紫外吸收剂 2 4-二羟基二苯甲酮 双丙酮葡萄糖 三聚氯氰 UV-absorber, 2 ,d-Dihydroxy-benzophenone, Diacetone glucos, 2,4,6-Trichloro-1,3,5-triazine
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