| 羟基喹啉偶氮类化合物的互变异构与顺反异构的研究 |
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| 引用本文： | 郑九天 吴世康. 羟基喹啉偶氮类化合物的互变异构与顺反异构的研究[J]. 感光科学与光化学, 1992, 10(4): 297-303 |
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| 作者姓名： | 郑九天 吴世康 |
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| 作者单位： | 中国科学院感光化学研究所，中国科学院感光化学研究所 北京 100101，北京 100101 |
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| 摘 要： | 本工作合成了数种带不同取代苯基的羟基喹啉偶氮类化合物。对它们在不同溶剂。不同酸碱度溶液中的偶氮式及腙式间互变异构平衡进行了研究。苯环上不同取代基的引入可引起平衡发生变化。拉电子基的引入有利于腙式结构的形成,而推电子基的引入则对偶氮的生成影响不大。此外,工作中还发现:羟基喹啉偶氮化合物在光照下存在着以偶氮顺-反异构化反应为主的变化过程。
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| 关 键 词： | 互变异构 羟基 喹啉 偶氮化合物 |
A STUDY ON THE TAUTOMERIC EQUILIBRIUM OF HYDRO-XY-OUINOLINE AZO-COMPOUNDS |
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| ZHENG JIU-TIAN Wu SHI-KANG. A STUDY ON THE TAUTOMERIC EQUILIBRIUM OF HYDRO-XY-OUINOLINE AZO-COMPOUNDS[J]. Photographic Science and Photochemistry, 1992, 10(4): 297-303 |
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| Authors: | ZHENG JIU-TIAN Wu SHI-KANG |
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| Abstract: | In this work, several kinds of 4-substituted phenyl azo-5-(8-hydroxyquinoline) compounds have been synthesized. The tautomeric equilibrium between the azo type and the hydrazone type of these compounds in different solvents and different acidity has also been studied. The introduction of an electron withdrawing group will facilitate the hydrazone formation. On the contrary, in the case of introduction of. electron-repulsive substitute no effect can be observed.In addition, it was found that under irradiation the main process of the excited state of these compounds is azo-cis/trans isomerization reaction rather than tautomerization. |
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| Keywords: | tautomeric equilibrium hydroxyquinoline-azo compound cis/trans isomeri-zation non-aqueous acid/base indicator |
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