Synthesis of some new 1-aryl-4-formyl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles using the Vilsmeier–Haack reaction — Isolation of the key intermediate 1-aryl-3-(4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)pyrazoles

Author: Kumar Ajay   Prakash Om   Kinger Mayank   Singh Shiv P  

Publisher: NRC Research Press

ISSN: 1480-3291

Source: Canadian Journal of Chemistry, Vol.84, Iss.3, 2006-03, pp. : 438-442

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