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Synthesis and characterization of a series of 4-methyl-1-[2-aryl-1-diazenyl]-1,4-diazepanes and 1,4-di-[2-aryl-1-diazenyl]-1,4-diazepanes.
- Source :
-
Canadian Journal of Chemistry . Dec2004, Vol. 82 Issue 12, p1725-1735. 11p. 3 Diagrams, 8 Charts, 1 Graph. - Publication Year :
- 2004
-
Abstract
- 1-Methylhomopiperazine was coupled with a series of diazonium salts to afford the 4-methyl-1-[2-aryl-1-diazenyl]-1,4-diazepanes (6), a new series of triazenes. These compounds are, in the main, stable crystalline solids (some of the series are stable oils), and they have been characterized by 1H and 13C NMR spectroscopy, IR spectroscopy, and mass spectrometry. NMR assignments were determined by 2D NMR and variable-temperature NMR experiments and by comparison with model compounds. A second series of new compounds, namely, 1,4-di-[2-aryl-1-diazenyl]-1,4-diazepanes (5), were prepared by coupling unsubstituted homopiperazine (1,4-diazepane) with 2 molar equivalents of the diazonium salt and were similarly characterized. The crystal and molecular structure of the parent member of this bis-triazene series (5, X = H) has been determined by single-crystal X-ray diffraction analysis. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TRIAZENES
*PIPERAZINE
*NUCLEAR magnetic resonance
*DIAZO compounds
*MOLECULES
Subjects
Details
- Language :
- English
- ISSN :
- 00084042
- Volume :
- 82
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Canadian Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 16158378
- Full Text :
- https://doi.org/10.1139/V04-153