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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Structure of 5-Methyl-4-[(arylamino)methylene]-2,4-dihydro-3H-pyrazol-3-ones

JE Rockley and LA Summers

Australian Journal of Chemistry 34(5) 1117 - 1124
Published: 1981

Abstract

5-Methyl-4-[(arylamino)methylene]-2,4-dihydro-3H-pyrazol-3-ones have been synthesized. Of the 12 possible tautomeric forms it has been shown that they exist as the (ary1amino)methylene tautomerwith intramolecular hydrogen bonding between the CO and exocyclic NH groups.

https://doi.org/10.1071/CH9811117

© CSIRO 1981

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