cas 4185-53-9, Benzene, 2-bromo-1,3,5-trinitro-

Articles about 4185-53-9Total 6 be found

Scalability of a Time- And Cost-Effective Procedure for the Synthesis of Picryl Bromide
An optimized synthetic procedure for the manufacture of picryl bromide on a 300 g scale is described. Previous procedures had different drawbacks such as two or more separate nitration steps with varying mixed acids, a complicated workup and purification
Klap?tke, Thomas M.,Dosch, Dominik E.
p. 2096 - 2098
(2019)
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Synthesis of Polynitropolyphenyl Compounds. A Strategy for the Construction of Bi-, Ter-, and Quater-Phenyl Systems Utilising Halogenodemethoxylation and Ullmann Coupling
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Bellamy, Anthony J.,Hudson, P. Nick
p. 959 - 978
(2007/10/03)

Chloro- and bromo-demethoxylation of methoxypolynitroaryl systems
Various reagents for effecting halogenodemethoxylation of methoxy substituted polynitrophenyl and -biphenyl systems have been investigated, and the preferred procedures for achieving chloro- and bromo-demethoxylation in high yield have been identified.
Bellamy, Anthony J.,Hudson, P. Nick
p. 5639 - 5642
(2007/10/03)

Nitrocarbons. 4. Reaction of Polynitrobenzenes with Hydrogen Halides. Formation of Polynitrohalobenzenes
Hexanitrobenzene and pentanitrobenzene in benzene solution react with hydrogen halides (HCl, HBr, HI, but not HF) at 25 deg C to produce high yields of pentanitrohalobenzenes and 2,3,4,6-tetranitrohalobenzenes, respectively.Pentanitrofluorobenzene also reacts readily with HCl to yield 3-chloro-2,4,5,6-tetranitrofluorobenzene, but the other pentanitrohalobenzenes are much less reactive. 1,2,3,5- and 1,2,4,5-tetranitrobenzenes react rapidly with concentrated hydrochloric or hydrobromic acids at reflux to form picryl halides and 1-halo-2,4,5-trinitrobenzenes, respectively; pentanitrotoluene reacts very slowly under these conditions to form 3-halo-2,4,5,6-tetranitrotoluenes in lower yields.The scope and limitations of this regioselective reaction are defined, and comparison is made to related reactions.A mechanism is presented and discussed.
Nielsen, Arnold T.,Chafin, Andrew P.,Christian, Stephen L.
p. 4575 - 4580
(2007/10/02)

2,5-Dipicrylfurans
2,5-Dipicrylfurans of the formula STR1 wherein R1 and R2 vary independently and are select from the gp consisting of H and NO2. Unsubstituted 2,5-dipicrylfuran (R1 = R2 = H) is prepared by reacting a picryl halide with a 2,5-dihalofuran. Unsubstituted 2,5-dipicrylfuran may be nitrated under selected conditions to produce either 2,5-dipicryl-3-nitrofuran (R1 = NO2, R2 = H) or 2,5-dipicryl-3,4-dinitrofuran (R1 = R2 = NO2). The 2,5-dipicrylfurans of this invention are energetic explosives possessing high thermal stability.
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(2008/06/13)