860-83-3Relevant academic research and scientific papers
Studies on the synthesis and properties of polynitro compounds based on esteryl backbones
Xu, Zhen,Yang, Hongwei,Cheng, Guangbin
, p. 9936 - 9944 (2016)
Four esteryl-bridged energetic compounds have been derived from 2,2,2-trinitroethanol with polynitro benzoic acids and characterized via IR, multinuclear NMR spectroscopy, elemental analysis and differential scanning calorimetry (DSC). The structures of 2,2,2-trinitroethyl-2,4,6-trinitrobenzoate (5), bis(2,2,2-trinitroethyl)-4,6-dinitroisophthalate (6), bis(2,2,2-trinitroethyl)-2,5-dinitroterephthalate (7) and bis(2,2,2-trinitroethyl)-2,4,6-trinitroisophthalate (8) were further confirmed by X-ray diffraction studies, which show favorable densities (1.804-1.850 g cm-3). Interestingly, most of the polynitro esters decompose at temperatures over 180 °C (except for 6: 171.6 °C), which thus exhibit good thermal stability. In addition, performance calculations give detonation pressures and velocities for the ester derivatives in the range of 30.4-32.9 GPa and 8267-8559 m s-1, respectively. The esteryl-bridged compounds possess acceptable impact sensitivities (14-22 J), friction sensitivities (240-360 N), and electrostatic sensitivities (0.20-0.32 J). These values indicate that polynitro esters can be candidates as promising energetic materials.
Sterically Hindered Carboxylic Acid Esters
Bagal,Ishchenko,Nikolaev
, p. 1731 - 1738 (2007/10/03)
Methods have been developed for preparation of esters formed by sterically hindered benzoic acids and various alcohols, which were difficult to obtain previously. The methods are based on the reaction of carbenium ions, generated from primary aliphatic N-nitroamines by the action of nitrous acid or Lewis acids, with carboxylic acid at the sterically accessible oxygen atom of the carboxy group. Reactions of nitrobenzoic acids and benzenepolycarboxylic acids with 2,2,2-trinitroethyl hydrogen sulfate provide an effective method for preparation of corresponding trinitroethyl esters.
