Search Results - (Author, Cooperation:D. Nesterenko)

2012-08-11

American Association for the Advancement of Science (AAAS)

0036-8075

1095-9203

Biology

Chemistry and Pharmacology

Computer Science

Medicine

Natural Sciences in General

Physics

1573-9171

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Conclusions 1. On the examples of monoethanolamine, 1,3-diamino-2-propanol, 1-amino-2,3-propanediol, and d,l- and meso-1,4-diamino-2,3-butanediols, it was shown that fluorodinitromethane can be condensed with formaldehyde and amino alcohols, in which the amino group is attached to a primary carbon atom. 2. A number of N-(2-fluoro-2,2-dinitroethyl)-N-nitro derivatives of amino alcohols were obtained, and also their esters with acetic, nitric,γ,γ,γ-trinitrobutyric,andγ-fluoro-γ,γ-dinitrobutyric acids.

Electronic Resource

1573-9171

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Conclusions 1. The vibration frequency of the C-F bond in the IR spectra of the monofluoropolynitroalkylnrtramines was identified. The frequency as a function of the electronegativity of the second substituent attached to the nitramine group was explained as being due to the shielding effect of the nitramine group. 2. An intramolecular hydrogen bond between the nitramine and hydroxyl groups is present in N-(2-fluoro-2,2-dinitroethyl)-N-nitroamino alcohols.

Electronic Resource

1573-9171

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Conclusions 1. Some N-(2-fluoro-2,2-dinitroethyl)-N-nitroalkylamines and N,N′-(2-fluoro-2,2-dinitroethyl)-N,N′-dinitroalkylenediamines were synthesized. 2. A linear relation exists between the n D 120 values and the amount of hydrogen for compounds belonging to the homologous series of N,N′-(2-fluoro-2,2-dinitroethyl)-N,N′-dinitroalkylenediamines.

Electronic Resource

1573-9171

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Electronic Resource

1573-9171

nitroxyalkylammonium nitrates ; amino alcohols ; O-nitration ; concentration ; limits of detonation ; explosion-proof process

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Abstract A method forO-nitration of amino alcohols with a non-detonating mixture of nitric acid with dichloromethane has been proposed. The target crystalline products were precipitated from the reaction mixture by acetic anhydride.

Electronic Resource

1573-9171

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Conclusions 1. A method is proposed for getting aminoalcohols with low reactivities to undergo Mannich reactions by blocking their hydroxyl groups with ester groups. 2. Using this method, the authors have obtained from trimethylolaminomethane N-(2,2,2-trinitroethyl)-, N-(2-fluroro-2,2-dinitroethyl)-, and N-(2,2-dinitropropyl)-substituted N-nitrotrimethylolaminomethane, its triacetate, and trinitrate.

Electronic Resource

1573-9171

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Conclusions 1. On the example of the fluorination of the internal salt of 3,3-dinitro-1-aminopropane in water, it was shown that a selective fluorination of the anion center in nitroalkylamines, with preservation of the amino group, is possible. 2. Salts and some N-substituted derivatives of 3-fluoro-3,3-dinitro-1-aminopropane were synthesized,

Electronic Resource

0721-3115

Chemistry ; Polymer and Materials Science

Wiley InterScience Backfile Collection 1832-2000

Chemistry and Pharmacology

Process Engineering, Biotechnology, Nutrition Technology

The explosives with various molecular-atomic structures substantially differ by their detonation velocities and brisance but often are similar by the expansion of their detonation products (DP's) which mainly consist of the same molecules. Such explosives referred to as “usual” show the relationship between ϱD and brisance determined by different methods. There are linear correlation relations between the results obtained.This relationship is not observed with the “unusual” explosives which differ from the “usual” ones by the chemistry of detonation processes. These explosives include liquid explosives, explosive-oxidants. CNO- and HNO-explosives and also CHNOF-explosives. Their calculation of thc detonation parameters and brisance from the same criterions which characterize the chemical composition of the explosives and the detonation products, results in some errors.Taking these differences into account it is possible in some cases markedly to increase the accuracy of the detonation parameters. As an example is the calculation of the detonation pressure to within 3% based on the linear correlation relation between the pressure (PJ) and the relative detonation impulse (Irel) which characterizes the charge ability to do work at the initial stages of thc expansion of the detonation products: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm P}_{\rm J} = 0.462 \cdot {\rm I}_{{\rm rel}} - 20.9 $$\end{document} The relative impulse, in its turn, may be calculated both for “usual” and “unusual” explosives from the atomic composition of an explosive, its density and the enthalpy of the formation with the error that does not exceed the experimental (2%).

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Electronic Resource