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Cyclisation reactions of hydrazones XXXII. Synthesis of some pyrazolylhydrazones and study of their cyclisation

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Abstract

Several variously substituted 1H-pyrazol-5-yl hydrazones were prepared in order to study their cyclisation reactions. It has been found that the pathway of the cyclisation depends on the nature of the cyclisation medium and the position of substitution in the pyrazole ring.

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Acknowledgements

The authors gratefully acknowledge the financial support by the Ministry of Education, Youth, and Sports, Czech Republic (MSM6198959216).

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Authors and Affiliations

  1. Department of Organic Chemistry, Palacky University, Tr. 17. listopadu 1192/12, 771 46, Olomouc, Czech Republic

    Petr Cankař & Jan Slouka

  2. Laboratory of Growth Regulators, Institute of Experimental Botany, AS CR and Palacky University, Slechtitelu 11, 783 71, Olomouc, Czech Republic

    Michal Maloň & Tomáš Gucký

Authors
  1. Petr Cankař
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  2. Michal Maloň
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  3. Tomáš Gucký
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  4. Jan Slouka
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Correspondence to Petr Cankař.

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Cankař, P., Maloň, M., Gucký, T. et al. Cyclisation reactions of hydrazones XXXII. Synthesis of some pyrazolylhydrazones and study of their cyclisation. Monatsh Chem 142, 1149–1153 (2011). https://doi.org/10.1007/s00706-011-0589-0

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  • DOI: https://doi.org/10.1007/s00706-011-0589-0

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