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Updated: Jul 23, 2025

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
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Published on: May 21, 2019

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铜催化脱化自我合/循环化5-aminopyrazoles:合成和光物理研究的pyridazines

Gaurav K Rastogi1,2, Mohit L Deb1,3, Pranjal K Baruah1

  • 1Department of Applied Sciences, GUIST, Gauhati University, Guwahati-781014, Assam, India. baruah.pranjal@gmail.com.

Chemical communications (Cambridge, England)
|July 19, 2023
PubMed
概括

这项研究揭示了5-aminopyrazoles的一种新型自我合反应,有效地形成了pyridazine核心. 合成的化合物显示出有前途的光特性,并提出了激进机制.

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The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
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