» Articles » PMID: 37685883

Treatment of Substandard Rocket Fuel 1,1-Dimethylhydrazine Via Its Methylene Derivative into Heterocycles Based on Pyrrolo-[3,4c]Quinolines, Cyclododeca[b]piran and Pyrrole

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2023 Sep 9
PMID 37685883
Authors
Affiliations
Soon will be listed here.
Abstract

1,1-Dimethylhydrazine (Heptil, rocket fuel (UDMH)) is characterized by extremely high toxicity, teratogenicity and the ability to constantly absorb water from the atmosphere, losing its energy characteristics. In this regard, as well as due to the alternative fuel ("Angara") transition, there is a need for UDMH utilization in huge amounts. A more benign approach involves its immediate reaction with a formalin solution to form 1,1-dimethyl-2-methylene hydrazone (MDH), which is significantly less toxic by an order of magnitude. MDH can then be polymerized under acidic conditions, and the resulting product can be burned, yielding a substantial amount of nitrogen oxides. We propose an alternative to incineration by involving MDH in organic synthesis. We studied the reactions of MDH and its analog N,N-dimethyl-2-(methylenamino)ethane-1-amine (MDEA) with available CH-acids: tetracyanoethylated ketones (TCEKs) based on cyclohexanone, 4-propylcyclohexanone, 2-methylcyclohexanone, cyclododecanone and tetracyanoethane. The structures synthesized were confirmed by IR, H, C NMR and mass spectroscopy methods. MDH-based adducts were also identified by X-ray structural analysis. TCEKs and MDH, as well as TCEK based on cyclohexanone and MDEA, form bi- and tricyclic structures: pyrrolo [3,4c]-quinolines (using TCEKs based on cyclohexanone and 4-propylcyclohexanone), epiminomethanoquinoline-3,4-dicarbonitrile (using TCEK based on 2-methylcyclohexanone) and cyclododec[b]pyran-3,4-dicarbonitrile (using TCEK based on cyclododecanone). MDH and TCNEH formed a pyrrole derivative. Thus, we synthesized the structures that are of interest for molecular design and pharmaceutical chemistry.

References
1.
Tompson D, Vearer D . Steady-state pharmacokinetic properties of a 24-hour prolonged-release formulation of ropinirole: results of two randomized studies in patients with Parkinson's disease. Clin Ther. 2008; 29(12):2654-66. DOI: 10.1016/j.clinthera.2007.12.010. View

2.
Takacs D, Egyed O, Drahos L, Szabo P, Jemnitz K, Szabo M . Synthesis and pharmacological investigation of new N-hydroxyalkyl-2-aminophenothiazines exhibiting marked MDR inhibitory effect. Bioorg Med Chem. 2013; 21(13):3760-79. DOI: 10.1016/j.bmc.2013.04.034. View

3.
Dressler D . [Apomorphine in the treatment of Parkinson's Disease]. Nervenarzt. 2004; 76(6):681-9. DOI: 10.1007/s00115-004-1830-4. View

4.
Butora G, Morriello G, Kothandaraman S, Guiadeen D, Pasternak A, Parsons W . 4-Amino-2-alkyl-butyramides as small molecule CCR2 antagonists with favorable pharmacokinetic properties. Bioorg Med Chem Lett. 2006; 16(18):4715-22. DOI: 10.1016/j.bmcl.2006.07.011. View

5.
Schmuck K, Ullmer C, Kalkman H, Probst A, Lubbert H . Activation of meningeal 5-HT2B receptors: an early step in the generation of migraine headache?. Eur J Neurosci. 1996; 8(5):959-67. DOI: 10.1111/j.1460-9568.1996.tb01583.x. View