6294-89-9Relevant articles and documents
1,5-Di(nitramino)tetrazole: High Sensitivity and Superior Explosive Performance
Fischer, Dennis,Klap?tke, Thomas M.,Stierstorfer, J?rg
, p. 10299 - 10302 (2015)
Highly energetic 1,5-di(nitramino)tetrazole and its salts were synthesized. The neutral compound is very sensitive and one of the most powerful non-nuclear explosives to date. Selected nitrogen-rich and metal salts were prepared. The potassium salt can be used as a sensitizer in place of tetracene. The obtained compounds were characterized by low-temperature X-ray diffraction, IR and Raman spectroscopy, multinuclear NMR spectroscopy, elemental analysis, and DSC. Calculated energetic performances using the EXPLO5 code based on calculated (CBS-4M) heats of formation and X-ray densities support the high energetic performances of the 1,5-dinitraminotetrazolates as energetic materials. The sensitivities towards impact, friction, and electrostatic discharge were also explored.
Palladium-Catalyzed Oxidative C–H Alkoxycarbonylation of Arenes with Alkylcarbazates Directed by N-Heterocyclic Substituents
Yogesh Kumar, Gujjenahalli Ramalingaiah,Begum, Noor Shahina
supporting information, p. 4698 - 4704 (2020/07/04)
With alkyl carbazates as the green ester source, a novel palladium-catalyzed oxidative free radical carbonylative transformation of the C–H bond on aromatic rings to produce esters has been developed. Good yields of the corresponding products have been obtained with wide functional group tolerance and excellent regioselectivity. A variety of alkyl carbazates are found to be suitable reactants for the ortho-alkoxycarbonylation on the aromatic ring.
A METHOD FOR PRODUCING POTASSIUM 1,1 -DINITRAMINO-5,5-BISTETRAZOLATE AND EXPLOSIVE COMPOSITIONS COMPRISING SAID SALT
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Paragraph 0051; 0065, (2020/06/16)
A method of producing K2DNABT wherein a biztetrazole intermediate is nitrated using a nitrating agent selected from the following: dinitronium disulphate; a mixture of nitric acid and sulfuric acid; a mixture of nitric acid and phosphorous pentoxide; and nitric acid with acetic anhydride.
An efficient protocol for the production of pymetrozine via a new synthetic strategy
Zhou, Qifan,Du, Fangyu,Shi, Yajie,Liu, Wenqiang,Liu, Dongdong,Chen, Guoliang
, p. 434 - 438 (2018/09/12)
A practical four-step synthesis of pymetrozine is reported, starting from a green chemical dimethyl carbonate and using the key intermediate methyl (E)-1-(2-oxopropyl)-2-(pyridin-3-ylmethylene)hydrazine-1-carboxylate. The main advantages of the route include inexpensive starting materials, environmental friendliness, short synthetic route, easy-to-use synthetic method and acceptable overall yield. A scale-up experiment was carried out to provide pymetrozine with 99.84% purity in 53.2% total yield.