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12
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3
Nitrogenous derivatives of β-ketoaldehydes are capable of various tautomeric transformations [1-5]. The condensation products of aldehydes with area luxury hydrazide aromatic acids exist in linear hydrazone and emigrating forms. The appearance of an alternative cyclic 5-hydroxy-2-pyrazoline form is facilitated by the introduction of a strong electron-acceptor substituent into the aromatic core of 1,3-ketoaldehyde. In a series of compounds, an increase in the volume of the substituent in the acyl part shifts the tautomerism equilibrium towards the enhydrazine form. The resulting ligands were studied by elemental analysis, IR and NMR spectroscopy. The molecular structure of compound II is determined by the method of RSA (CIF file CCDC №.1826717).
Alan : Eğitim Bilimleri
Dergi Türü : Ulusal
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