학술논문
Synthesis of novel Schiff bases as stable enol‐imine‐containing diazene bonds and pyrimidines using trimethinium salts.
Document Type
Article
Source
Subject
*SCHIFF bases
*PROTON magnetic resonance
*NUCLEAR magnetic resonance
*PYRIMIDINES
*ENOLS
*SCHIFF base derivatives
*MOLECULAR structure
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Language
ISSN
0022-152X
Abstract
Novel derivatives of Schiff bases with diazene bonds and six new 2,5‐disubstituted pyrimidine derivatives were synthesized by reaction of 2‐substituted trimethinium salts with 4‐aminoazobenzene or benzamidine hydrochloride, respectively, by a simple method and using inexpensive reagents. The purity and molecular structure of the new compounds were determined by elemental analysis, mass spectrometry, infrared, ultraviolet/visible, as well as proton nuclear magnetic resonance (1H NMR) and carbon‐13 nuclear magnetic resonance (13C NMR) spectroscopy. [ABSTRACT FROM AUTHOR]