Can cyclopropyl ring serve as energetic moiety? A structural and reactivity perspective
Abstract
Cyclopropyl-functionalized energetic compounds 2, 3, 5, and 7 were synthesized and characterized comprehensively. Compounds 2 and 5 showed exceptional hypergolicity, with an ultrashort ignition delay of 6 and 2 ms. Notably, 5 outperformed its hydrazine analogue (iii), establishing cyclopropyl substitution as a promising strategy for advanced hypergolic propellant additives.

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