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|Title:||Synthesis and NMR spectral studies of some new 1-heteroaryl-5-amino- 3-alkyl/aryl-4-cyanopyrazoles|
Singh, Shiv P
|Keywords:||1-Heteroaryl-5-amino-3-alkyl-4-cyanopyrazoles;Heteroarylhydrazines;Alkylidenemalononitriles;13C NMR spectroscopy|
|IPC Code:||Int. CI.8 C07D|
|Abstract:||Reaction of heteroarylhydrazines 1 with alkylidenemalononitriles 2 may, in principle, result in the formation of 1-heteroaryl-5-amino-3-alkyl/aryl-4-cyanopyrazoles 3 and/or isomeric I-heteroaryl-3-amino-5-alkyl/aryl-4-cyanopyrazoles 4. However, in the present investigation, only a single isomer 3 has been obtained. The structure of the products has been assigned on the basis of a rigorous analysis of their 1H and 13C NMR spectral data.|
|Appears in Collections:||IJC-B Vol.45B(06) [June 2006]|
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