Synthesis and nitration of condensation products of sulfamates with aliphatic amines and formaldehyde

A method for the synthesis of 5-alkyl-1,3-dinitro-1,3,5-triazacyclohexanes and linear polynitramines was proposed. It includes the reaction of aliphatic amines with sulfamates and formaldehyde and nitration of the reaction products. The yield and composition of nitramino derivatives depend on the conditions of the condensation and nitration. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1088–1091, June, 2000.     

Synthesis and evaluation of cytotoxicity of S-substituted 5-sulfanylmethyl(ethyl)-1,3,4-thiadiazol-2-amines

Russian Chemical Bulletin - A general and efficient method for the synthesis of S-substituted 5-sulfanylmethyl(ethyl)-1,3,4-thiadiazol-2-amines via cyclocondensation of aryl(benzyl)sulfanylacetic...     

The reaction of sulfamic acid derivatives with epoxides

A new method for obtaining N-(b-hydroxyalkyl)sulfamates with 50–95 % yields by the reaction of sulfamic acid derivatives with epoxides is proposed.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1146–1147, June, 1993.     

Synthesis of β-nitroxyalkylnitramines

β-Nitroxyalkylnitramines were obtained by nitration of β-hydroxyalkyl sulfamates, products of the condensation of derivatives of sulfamic acid with alkene oxides, by a mixture of HNO₃ and H₂SO₄. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1061–1062, May, 1997.     

Synthesis of mixed plasticizers containing N,N′-bis(nitrooxyalkyl)-N,N′-dinitromethanediamines

New mixed plasticizers for gas-generating compositions on the basis of nitrooxy derivatives of N,N′-dialkyl-N,N′-dinitromethanediamines were obtained by condensation of N-hydroxyalkylsulfamates with formaldehyde, followed by nitration.     

Synthesis ofN,N′-dialkylmethylenebis(nitramines) fromN-alkylsulfamates

Symmetrical and unsymmetricalN,N′-dialkylmethylenebis(nitramines) were obtained fromN-alkylsulfamates by condensation with formaldehyde and subsequent nitration. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1085–1087, June, 2000.     

Preparation ofN,N-dialkyl methylenebisnitramines

The possibility of obtainingN, N'-dialkyl methylenebisnitramines from primary nitramines and formaldehyde in dilute H₂SO₄ (65–85%) has been shown. The reaction starting from two different nitramines results in a mixture of one asymmetrically and two symmetrically substituted products.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1999–2001, November, 1993.     

The reaction of sulfamic acid derivatives with epoxides

The reaction of the salts of sulfamic acid andN-alkylsulfamic acids with glycidol, epichlorohydrin, and epoxy ethers gives the corresponding functionally substituted -hydroxyalkylsulfamates.For communication 1 see Ref. 1.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1063–1065, June, 1994.