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Enamines in Heterocyclic Synthesis: A Route to 4-Substituted Pyrazoles and Condensed Pyrazoles
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Huwaida M. E. Hassaneen
,
Hamdi M. Hassaneen
Published/Copyright:
June 2, 2014
Abstract
The reaction of nitrile imines, generated in situ, from hydrazonoyl halides 3a - e with enamines 2a - c affords pyrazoles 8a - g. These pyrazoles have been used to prepare condensed pyrazoles.
Received: 2004-5-17
Published Online: 2014-6-2
Published in Print: 2004-10-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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Keywords for this article
Enamines;
Hydrazonoyl Halides;
Pyrazoles;
Dimethylformamide Dimethylacetal
Articles in the same Issue
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- Diastereomeric Halfsandwich Rhenium Complexes Containing Thiolate and Thioaldehyde Ligands
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- Syntheses and Characterization of New Mixed-Ligand Mercury(II) Complexes, Hg(bpy)n(SCN)X (X = CH3COO–, NO3– and ClO4–), Crystal Structure of [Hg(bpy)2(SCN)]NO3
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- Cazolobine, a New Sesquiterpene from Isolona hexaloba (Annonaceae)
- Synthesis and Solid-State Structures of Alkyl-Substituted 3-Cyano-2-pyridones
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- Synthesis, Spectroscopic Studies and Crystal Structure of 5,5’-Dimethoxy- 3,3’-methanediyl-bis-indole as the Inhibitor of Cell Proliferation of Human Tumors
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- Synthesis, Structure, and Absolute Configuration of a New Cyclopropanic Compound Derived from the Sesquiterpene β-Himachalene
