1916-43-4

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• 95-54-5 1,2-diamino-benzene 
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Relevant academic research and scientific papers

Highly Stable Univalent Copper of a Cu@Al/SBA-15 Nanocomposite Catalyzes the Synthesis of Fluorescent Aminobenzotriazoles Derivatives

With the development of green chemistry, it is still a challenge to maintain the unstable valence state of the metal in heterogeneous catalysts and realize new catalytic synthesis methods. In this paper, it is reported that an univalent copper nanocomposite (Cu@Al/SBA-15) can efficiently catalyze the formation of novel amino-containing benzotriazoles with great fluorescence properties in a new synthetic strategy. Subsequently, its application is further verified by an acylation reaction to produce a series of novel benzotriazoles derivatives with high yield. It is worth noting that the Cu@Al/SBA-15 nanocomposites not only enable the reaction completed with high yield in a short time, but can also be recycled many times without a significant reduction in activity, and the leaching of copper and aluminum species in reaction system is negligible. Finally, the detailed and feasible reaction mechanism is also provided.

Fluorescent compounds containing benzotriazole, and preparation method and application of fluorescent compounds

The invention relates to fluorescent compounds containing benzotriazole as well as a preparation method and application of the fluorescent compounds. According to the preparation method, simple and easily available o-phenylenediamine compounds are used as a raw material and a Cu/Al-SBA-15 (I) mesoporous material with a synergistic effect of monovalent copper and framework aluminum is utilized so as to catalytically synthesize various fluorescent compounds containing benzotriazole. The key point of the invention is to provide a novel preparation method which enables the o-phenylenediamine compounds to be synthesized into a series of the benzotriazole-containing fluorescent compounds in a relatively short time and a relatively high yield under the catalysis of the Cu/Al-SBA-15 (I) mesoporous material with the synergistic effect of the monovalent copper and the framework aluminum. Meanwhile, the fluorescent compounds have stable cyclization structures and can be used as intermediates for organic synthesis to synthesize various luminous amide derivatives. The method has the advantages of simple and easily available raw materials, simple and controllable process, rapidness, high efficiency, few byproducts and easiness in industrial implementation.