Chemija / Chemistry
 ISSN 0235-7216 ISSN 2424-4538 (online) |
2011 m. Nr. 1 Synthesis and structure of 3,3’-[(4-alkoxyphenyl)imino]bis-
(N’-phthaloyl- or N’-benzylidenepropanohydrazide) derivatives
The title compounds were synthesized from the respective hydrazides and phthalic anhydride or aromatic aldehydes and characterized by elemental analysis, mass spectrometry, NMR spectra, and molecular modeling. The structural features of these disubstituted amines with different spatial arrangement of their identical substituents have been specifically reflected by 1H and 13C NMR spectra. An analysis of the inseparable mixtures of isomers existing in d6-DMSO solution on purpose to ascertain the cause of a supplementary set of resonances in the NMR spectra of the study compounds is reported. Keywords: propanohydrazide, substituted amine, NMR spectra, isomers, molecular modeling |
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