G. Kh. Khisamutdinov

α-Azidopolynitroalkanes. Synthesis and vibrational spectra

Methods for the preparation of α-azidopolynitroalkanes by reactions of polynitroalkanes or α-(difluoroamino)polynitroalkanes with NaN3 were developed. In the case of tetranitromethane, one or two nitro groups can be substituted, depending on the reaction conditions. The reaction of 1,1,1-trinitroethane with NaN3 affords nitro-1,2,3-triazole, together with 1-azido-1,1-dinitroethane. The IR spectra of α-azidopolynitroalkanes were studied.

Synthesis of 4,7-diaminopyridazino[4,5-c]furoxan

Abstract4,7-Diaminopyridazino[4,5-c]furoxan was synthesized by intramolecular cyclization of 3-cyanofuroxan-4-carbamidrazone obtained from 3,4-dicyanofuroxan and hydrazine.

Synthesis and properties of 1,2,4-triazolo[4,3-d]-1,2,4-triazolo-[3,4-f]furazano[3,4-b]pyrazines

New methods for the synthesis of 1,2,4-triazolo[4,3-d]-1,2,4-triazolo[3,4-f]furazano[3,4-b]pyrazines with functional substituents of various types are proposed and some properties of these compounds are studied.

Synthesis and some properties ofN-polynitromethyl derivatives of fused benzotriazoles

The procedures for the synthesis ofN-polynitromethyl derivatives of benzo[1,2-d;4,5d′]ditriazole-4,8-dione are described. Some chemical properties of the compounds obtained are investigated.

Interaction of polynitro compounds with difluoroamine

Difluoroamine does not react with tetranitromethane and fluoro-, chloro-, and bromotrinitromethanes in DMF and in acidic media (CF3COOH, ClSO3H, FSO3H, and oleum), but reacts with α-fluoro- and α-(difluoroamino)-α,α-dinitrotoluenes to give substitution products of the difluoroamino group for both the nitro groups,viz., PhC(NF2)2F and PhC(NF2)3, respectively.

The synthesis of fused benzotriazoles based on hexaaminobenzene derivatives

New methods for synthesis of hexaaminobenzene are proposed and, based on this compound, previously unknown preparative procedures for obtaining fused benzotriazoles are developed.

Reactions of (difluoroamino)trinitromethane with nucleophilic reagents

Reactions of F2NC(NO2)3 with metal fluorides (KF and CsF) in DMF yield a substitution product of the fluorine atom for one nitro group, F2NC(NO2)2F. The reaction of F2NC(NO2)3 with LiBr in ethanol or DMF affords Br(NO2)C=NF rather than the expected bromo derivative F2NC(NO2)2Br.

Synthesis, properties, and structures of 5-nitroalkyl-5H-(1,2,3)triazolo[4,5-c]furazans

Methods for the synthesis of the first representatives of 5-nitroalkyl-5H-(1,2,3)triazolo[4,5c]furazans have been developed, and some of their properties have been studied.

Kinetics and mechanism of the reaction of nitro and halonitro compounds with potassium iodide and other reducing agents: Communication 7. Mechanism of the interaction of polynitro compounds with potassium iodide

1. The kinetics of the reaction of potassium iodide with 1,1,1-trinitroethane, 1-chloro-1,1-dinitroethane, and 1-bromo-1,1-dinitroethane was studied. The reactions of halodinitroethanes proceed according to a total second order, and are first order with respect to each component. 2. The addition of sulfuric acid (up to 5·10−3 M) does not influence the rate and order of the reaction in the case of halodinitromethanes, but accelerates the reaction of potassium iodide with trinitroethane.

Replacement of the nitro group by the fluorine atom in the polynitromethane series

1. Replacement of the nitro group by the fluorine atom under the influence of metal fluorides (KF, RbF, CsF), using various aprotic dipolar solvents as the medium, is a general reaction in the polynitromethane series. 2. This reaction can be recommended as a method for the preparation of fluoropolynitro derivatives of methane.