Staff Members - Benha University
Tautomerism of guanidines studied by 15N NMR: 2-hydrazono-3-phenylquinazolin-4 (3H)-ones and related compounds
• 2009
Publication Information
Authors
Ion Ghiviriga, Bahaa El-Dien M. El-Gendy, Peter J. Steeld and Alan R. Katritzky
Keywords
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Journal
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Publisher
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Volume
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Issue
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Pages
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publication.type
International
Paper Link
Open Link
Supplementary Materials
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Abstract
2-Hydrazono-3-phenylquinazolin-4(3H)-ones 11a–i are shown by 15N NMR to exist in DMSO solution predominantly as the imino tautomers B and not the amino tautomers A. 2-Hydrazino-benzimidazole derivative 12 and 2-hydrazino-4,6-dimethylpyrimidine derivative 13 were found to exist predominantly as the amino tautomers.