Simple methods for the introduction of nitrate ester, amino and diazo-oxide substituents into dinitromethylpyrazole

Zhang, Xiya; Lin, Xiangyang

doi:10.1039/d2nj02078e

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…The innate nature of energetic materials (EMs) dictates that they are capable of undergoing intense chemical reactions on their own. However, this nature requires some “initiating keys” to trigger its action, including heat, mechanical stimuli, light, and others. , Based on their applications, EMs can be classified into different types, such as secondary explosives, propellants, and pyrotechnics . Among them, primary explosives play an indispensable role in the field of EMs.…”

Section: Introductionmentioning

confidence: 99%

“…1,2 Based on their applications, EMs can be classified into different types, such as secondary explosives, propellants, and pyrotechnics. 3 Among them, primary explosives play an indispensable role in the field of EMs. Due to their extremely short DDT (deflagration-to-detonation transition) time, it can be triggered by very small stimuli and release tremendous amounts of energy (such as heat and shock waves) in a very short time.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of High-Energy ECPs by Retaining the Coordination Ability of Carbohydrazide Groups

Wang

Zhang

et al. 2023

Langmuir

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In order to preserve the coordinating ability of the hydrazide group, we used retrosynthetic analysis to design and synthesize ligand furan-2,5-dicarbohydrazide and its complexThe structure of the product was confirmed by single-crystal X-ray diffraction, infrared spectroscopy, and elemental analysis. The solvent-free target material ECPs-1 exhibited good thermal stability, sensitivity to mechanical stimuli, and excellent explosive properties. Furthermore, it had good potential for laser ignition and comparable detonation power to LA. The simple preparation method and inexpensive starting materials enriched the research on primary explosives.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of High-Energy ECPs by Retaining the Coordination Ability of Carbohydrazide Groups

Wang

Zhang

et al. 2023

Langmuir

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N-Acetonylnitropyrazolecarboxylic acids in the selective synthesis of N-acetonyl-3-R-5-nitropyrazolyl-1,2,4-oxadiazoles

Khoranyan,

Gushchina,

Suponitsky

et al. 2024

Russ Chem Bull

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Modification of an N-Methyl Group toward a New Energetic Melt-Castable Material with a Good Energy-Stability Balance

Zhang,

Wang,

Chen

et al. 2024

Synlett

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The energy and stability properties of energetic materials are often contradictory to each other (e.g. high energy vs low thermal stability). There is no doubt that it is still a challenge to explore the effective balance between energetic performance and molecular stability, especially for melt-castable materials. In this study, we selected the 4-methoxy-3,5-dinitropyrazole framework and stable nitro group to design a new energetic melt-castable compound, namely 4-methoxy-3,5-dinitro-1-(nitromethyl)-1H-pyrazole (MDNNMP). Compared with the N-methylation product DMDNP and nitrato-substituted derivative MC-7, MDNNMP exhibits better balanced performance including good thermal stability (Td: 203.7 °C), detonation velocity (Dv: 8099 m s-1) and impact sensitivity (20 J). The favorable balanced performance of MDNNMP suggests it as a suitable candidate for high-performance melt-castable material. Additionally, compared with the nitrato-methyl group, the nitromethyl group demonstrated superior advantages in performance regulation.

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Simple methods for the introduction of nitrate ester, amino and diazo-oxide substituents into dinitromethylpyrazole

Abstract: The oxygen balance and detonation properties of dinitromethylpyrazole were tuned according to the good reactivity of the chlorine group.

Cited by 3 publications

References 25 publications

Preparation of High-Energy ECPs by Retaining the Coordination Ability of Carbohydrazide Groups

Preparation of High-Energy ECPs by Retaining the Coordination Ability of Carbohydrazide Groups

N-Acetonylnitropyrazolecarboxylic acids in the selective synthesis of N-acetonyl-3-R-5-nitropyrazolyl-1,2,4-oxadiazoles

Modification of an N-Methyl Group toward a New Energetic Melt-Castable Material with a Good Energy-Stability Balance

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