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2,4-Dinitrochlorobenzene (DNCB) is an organic compound with the chemical formula (O 2 N) 2 C 6 H 3 Cl. It is a yellow solid that is soluble in organic solvents . It is an intermediate for the industrial production of other compounds.
[2] The reduction of benzenediazonium chloride with tin(II) chloride and hydrochloric acid provides phenylhydrazine. [2] 2,4-Dinitrophenylhydrazine is produced by the reaction of 1-chloro-2,4-dinitrobenzene with hydrazine. [2] Tetraphenylhydrazine is formed by the oxidation of diphenylamine with potassium permanganate in acetone. [2]
The three possible arrangements of the nitro groups afford three isomers, 1,2-dinitrobenzene, 1,3-dinitrobenzene, and 1,4-dinitrobenzene. Each isomer has the chemical formula C 6 H 4 N 2 O 4 and a molar mass of about 168.11 g/mol. 1,3-Dinitrobenzene is the most common isomer and it is used in the manufacture of explosives.
2,4-Dinitroaniline can be prepared by reaction of 1-chloro-2,4-dinitrobenzene with ammonia or by acid hydrolysis of 2,4-dinitroacetanilide. [ 1 ] Dinitroanilines are explosive and flammable with heat or friction.
2,4-Dinitroanisole can be formed from p-nitroanisole or o-nitroanisole nitration. Also it can be formed from 1-chloro-2,4-dinitrobenzene by treatment with sodium methoxide (sodium in methanol) or sodium hydroxide with methanol. [1] Over a period of days, alkalies will hydrolyse the ether bond to form 2,4-dinitrophenol. [7]
Disperse Yellow 42, a popular dye for polyesters, is derived from 1,4-dichloro-2-nitrobenzene. [1] 1,4-Dichloro-2-nitrobenzene is an organic compound with the formula C 6 H 3 Cl 2 NO 2. One of several isomers of dichloronitrobenzene, it is a yellow solid that is insoluble in water. It is produced by nitration of 1,4-dichlorobenzene. It is a ...
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1,2-Dichloro-4-nitrobenzene is an organic compound with the formula 1,2-Cl 2 C 6 H 3-4-NO 2. This pale yellow solid is related to 1,2-dichlorobenzene by the replacement of one H atom with a nitro functional group. This compound is an intermediate in the synthesis of agrochemicals.