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Pyrylium salts in the synthesis of 2-pyrazoline derivatives and earlier unknown substituted 3,3a,4,7-tetrahydropyrazolo[1,5-a]pyridin-7-ones

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Abstract

New 1,3,5-substituted 2-pyrazoline derivatives were synthesized from 2,6-diphenylpyrylium perchlorate and acylhydrazines. Method for the synthesis of earlier unknown 3,3a,4,7-tetrahydropyrazolo[1,5-a]pyridin-7-one derivatives from pyrylium salts and cyanoacetic acid hydrazide was proposed.

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Authors and Affiliations

  1. Scientific Research Institute of Physical and Organic Chemistry, South Federal University, 194/2 prosp. Stachki, 344090, Rostov-on-Don, Russian Federation

    L. Yu. Ukhin

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  1. L. Yu. Ukhin
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Correspondence to L. Yu. Ukhin.

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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2015–2017, October, 2007.

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Ukhin, L.Y. Pyrylium salts in the synthesis of 2-pyrazoline derivatives and earlier unknown substituted 3,3a,4,7-tetrahydropyrazolo[1,5-a]pyridin-7-ones. Russ Chem Bull 56, 2085–2088 (2007). https://doi.org/10.1007/s11172-007-0324-5

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  • DOI: https://doi.org/10.1007/s11172-007-0324-5

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