One-step synthesis of polypyrazoles and self-assembled polypyrazole–copper catalysts for click chemistry
Literature Information
Publication Date
2013-09-03
DOI
10.1039/C3PY01105D
Impact Factor
5.582
Authors
Longqiang Xiao, Shaojun Cai, Qingye Liu, Liqiong Liao, Xin Guo, Yan Li, Xiangxiang Jia, Feifei Li, Lijian Liu
View Original
Abstract
Polypyrazoles with molecular weights in the range of 6500–9300 g mol−1 and yields in the range of 71.4–82.5% were synthesized successfully by catalyst-free 1,3-dipolar cycloaddition of bisdiazo compounds to bisalkynes under thermal conditions and lost merely 5% of their weights at temperatures higher than 298 °C. The porous polypyrazole–copper complex with pore diameters in the range of 1–2 μm was prepared by the coordination of polypyrazole and copper sulfate (CuSO4), which is a reusable catalyst for the Huisgen 1,3-diploar cycloaddition of alkynes and organic azides to give the corresponding triazoles with yields over 90%.
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Source Journal
Polymer Chemistry
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Recommended Compounds
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