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Synthesis of 2-(pyridylazo)-2-furyl-and 2-(pyridylazo)-2-thienylmethines and other heterocyclic Schiff bases in the presence of molecular sieves

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The reactions of 2-furaldehyde, 2-thiophenecarbaldehyde, and their 5-methyl derivatives with 2-aminopyridines and some other amines in the presence of molecular sieves as a dehydrating agent and acid catalyst have been studied. A series of new heterocyclic azomethines was synthesized. Proposals were made for the mechanism of the condensation involving 2-aminopyridines and the structure of the intermediates in these processes.

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Authors
  1. I. Iovel'
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  2. L. Golomba
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  3. Yu. Popelis
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  4. S. Grinberga
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  5. E. Lukevics
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Additional information

Latvian Institute of Organic Synthesis, Riga LV-1006, Latvia. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 890–897, July, 2000.

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Iovel', I., Golomba, L., Popelis, Y. et al. Synthesis of 2-(pyridylazo)-2-furyl-and 2-(pyridylazo)-2-thienylmethines and other heterocyclic Schiff bases in the presence of molecular sieves. Chem Heterocycl Compd 36, 779–786 (2000). https://doi.org/10.1007/BF02256909

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  • DOI: https://doi.org/10.1007/BF02256909

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