Recyclable ZnIn2S4 Microspheres for Photocatalytic Azolation of N-Heterocycles
Recyclable ZnIn2S4 Microspheres for Photocatalytic Azolation of N-Heterocycles
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DOI：
10.1021/acssuschemeng.2c03978
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发表时间：
2022-10
期刊：
影响因子：
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通讯作者：
Runhe Wang;Fan-Lin Zeng;Xiaolan Chen;Hu-lin Zhu;L. Qu;Xian-Qiang Huang;S. Tang;Yu-Fen Zhao;Ting Yu
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文献类型：
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作者：
Runhe Wang;Fan-Lin Zeng;Xiaolan Chen;Hu-lin Zhu;L. Qu;Xian-Qiang Huang;S. Tang;Yu-Fen Zhao;Ting Yu
采用溶剂热法在不同溶剂中合成了一系列硫化锌铟（ZnIn 2S 4）。在表征之后，在乙醇中制备的ZnIn 2S 4（即，ZIS-1）表现出最高的光电流密度。以ZIS-1为光催化剂，在空气气氛中，在456 nm的蓝光下，实现了喹喔啉-2（1H）-酮、喹唑啉和2 H-苯并[B][1，4]恶嗪-2-酮等32个氮杂环化合物的C-H直接偶氮化反应.更重要的是，微球型光催化剂ZIS-1在催化过程中稳定，可重复使用至少5次而反应活性保持不变。此外，这种实用的方法也适用于其他一些感兴趣的复杂分子，如布洛芬和异氧头孢。
A series of zinc indium sulfide (ZnIn2S4) were synthesized by solvothermal methods in different solvents. After characterizations, the ZnIn2S4prepared in ethanol (i.e., ZIS-1) showed the highest photocurrent density. With the ZIS-1as a photocatalyst, the direct C–H azolation ofN-heterocycles including quinoxalin-2(1H)-ones, quinazoline, and 2H-benzo[b][1,4]oxazin-2-ones (32 examples) was realized in an air atmosphere under blue light (456 nm). More importantly, the microspherical photocatalyst ZIS-1is stable in the catalytic process and can be used at least five times while the reactivity remains unchanged. In addition, this practical approach is also applicable to some other complex molecules of interest, such as ibuprofen and isoxepac.