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Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
Disubstituted azidotetrazoles as energetic compounds
Takashi Abe1, Young-Hyuk Joo, Guo-Hong Tao
1Department of Chemistry, University of Idaho, Moscow, ID 83844-2343, USA.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|February 28, 2009
Summary
New disubstituted azidotetrazoles were synthesized via base-catalyzed C-F bond activation in trifluoromethylazo compounds. This method yields novel tetrazole derivatives with potential energetic properties.
Area of Science:
- Organic Chemistry
- Materials Science
Background:
- Trifluoromethylazo compounds are versatile precursors in organic synthesis.
- Azidotetrazoles are a class of nitrogen-rich compounds with energetic applications.
Purpose of the Study:
- To develop a novel synthetic route to disubstituted azidotetrazoles.
- To explore the base-catalyzed activation of C-F bonds in trifluoromethylazo-substituted alkanes.
- To characterize the resulting azidotetrazole derivatives and evaluate their energetic properties.
Main Methods:
- Base-catalyzed reaction of trifluoromethylazo-substituted cyclic and acyclic alkanes with sodium azide.
- Structural elucidation using X-ray crystallography, NMR, and IR spectroscopy.
- Determination of thermochemical and sensitivity data (heats of formation, detonation properties, impact sensitivity).
Main Results:
- Successful synthesis of various disubstituted azidotetrazoles, including alkyl-bridged bis(5-azido-1H-tetrazol-1-yl)diimines and cyclohexyl derivatives.
- Yields up to 75% were achieved for specific compounds.
- Characterization confirmed the structures of the novel compounds.
- Energetic properties were reported for the synthesized azidotetrazoles.
Conclusions:
- Base-catalyzed C-F bond activation offers an efficient pathway to disubstituted azidotetrazoles.
- The synthesized compounds represent a new class of energetic materials.
- Further research into their applications is warranted.
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