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Abstract <p>The reaction of 3-aminopyrazole derivatives with pentafluoroethyl iodide in the presence of a ruthenium photocatalyst under blue light irradiation is described. 3-Aminopyrazoles bearing a substituent at position 4 or 5 yielded the corresponding fluoroalkylation products. In the case of N-Boc derivatives of 3-aminopyrazole, the selectivity of radical fluoroalkylation depended on the structure of the N-Boc pyrazole.</p>

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Photocatalytic Fluoroalkylation of Derivatives of 3-Aminopyrazole

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • D. S. Koltun,
  • V. V. Levin,
  • A.D. Dilman

摘要

Abstract

The reaction of 3-aminopyrazole derivatives with pentafluoroethyl iodide in the presence of a ruthenium photocatalyst under blue light irradiation is described. 3-Aminopyrazoles bearing a substituent at position 4 or 5 yielded the corresponding fluoroalkylation products. In the case of N-Boc derivatives of 3-aminopyrazole, the selectivity of radical fluoroalkylation depended on the structure of the N-Boc pyrazole.