Some aromatic nitrate esters: synthesis, structural aspects, thermal and explosive properties

Microwave assisted facile synthesis of {1/1,3-bis/1,3,5-tris-[(2-nitroxyethylnitramino)-2,4,6-trinitrobenzene]} using bismuth nitrate pentahydrate as an eco-friendly nitrating agent

“…It is clear from Table 1 that in the case of compound 3c, absence of bands at 3610 and 3250 cm −1 , which correspond to -OH and -NH groups, respectively, and presence of additional band at 1640 cm −1 indicate complete conversion of -NH and -OH groups to corresponding -N-NO 2 and -O-NO 2 groups. The IR spectral data of the title compounds obtained in the present study is in close agreement with the reported data for the conventionally nitrated products [20].…”

“…The absence of protons of -OH and -NH groups indicated full conversion of these protons to corresponding -NO 2 groups. The NMR spectral data obtained for the title compounds (2a-2c) and (3a-3c) is in close agreement with the reported data [20].…”

“…After ascertaining the purity of these precursors, further experimental work was undertaken. The precursors (2a-2c) used in the present work was synthesized based on the lines of the reported method [20]. The synthesized compounds were characterized by their spectroscopic properties and physical constant.…”

“…Caution: Title compounds 3b and 3c have been reported [20] to be impact insensitive (h 50% ) up to 60 and 32 cm, respectively, and friction insensitive up to 19 and 12 kg, respectively [20]. Therefore, adequate care must be exercised during the synthesis or handling of these materials in accordance with the energetic materials safety regulations.…”

“…The reported methods require the acidic conditions, expensive reagents, toxic and corrosive chemicals and/or elaborate safety precautions and moreover some are not suitable for large-scale preparations [19]. Researchers from High Energy Materials Research Laboratory, Pune, India, recently reported [20][21][22] the synthesis of nitrate esters as possible high energy materials using conventional nitrating agent.…”