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Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
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Fused pyrazolo[3,4-d] pyrimidine nitrogen-rich salts with balanced energetic performance
Sagar Nehe1, Vikas D Ghule2, Srinivas Dharavath1
1Energetic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, Uttar Pradesh, India. srinivasd@iitk.ac.in.
Dalton Transactions (Cambridge, England : 2003)
|January 14, 2026
Summary
Researchers developed new energetic salts from a fused tetracyclic backbone. Compound 4c demonstrated significant detonation performance, indicating its potential as a secondary explosive with low sensitivity.
Area of Science:
- Materials Science
- Chemistry
- Energetic Materials
Background:
- Pyrazolo[3,4-d]pyrimidine scaffolds are known for their versatile applications.
- Development of novel energetic materials with enhanced performance and safety is crucial.
Purpose of the Study:
- To synthesize and characterize novel energetic salts based on a pyrazolo[3,4-d]pyrimidine-derived fused tetracyclic backbone.
- To evaluate the energetic properties, including density, detonation parameters, and sensitivity, of the synthesized compounds.
Main Methods:
- Synthesis of novel energetic salts.
- Characterization using spectroscopic and analytical techniques.
- Evaluation of detonation performance and mechanical sensitivity.
Main Results:
- A series of novel energetic salts were successfully synthesized and characterized.
- All compounds exhibited good densities and detonation parameters.
- Low sensitivity to mechanical stimuli was observed for all synthesized salts.
- Compound 4c showed impressive detonation performance, creating a 36 × 31 mm dent on a lead plate.
Conclusions:
- The synthesized energetic salts possess favorable properties for energetic applications.
- Compound 4c shows significant potential as a secondary explosive due to its balanced performance and safety profile.
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