3-chloro-2,4.6-trinitrophenol

Other examples of oxynitration include the formation of (1) 2,4,6-trinitro-m-cresol from toluene, (2) 2,4-dinitronaphth-l-ol from naphthalene, (3) 3-chloro-2,4,6-trinitrophenol from chlorobenzene and (4) 3-hydroxy-2,4,6-trinitrobenzoic acid from benzoic acid. ... 

N)3C6H(NH.C2H5)2 mw 299.24, N 23.41% yel crysts mp 142-44° was prepd by heating N-nitro-N-ethyl-2,3,4,6-tetranitroaniline with ethylamine in a tube at 50-60°, or from 3-chloro-2,4,6-trinitrophenol ethylamine in ale. Its expl props were not reported Refs 1) Beil 13, 61 8t (17) 2) J.J. 

Phenols, particularly the highly chloro-or nitro-substituted variety, are an important group of organic contaminants which, at typical ambient pH, can be present in groundwater predominantly as phenolate anions. Ulibarri et al. [154] studied the adsorption capacity of 2,4,6-trinitrophenol (TNP) on Mg/Al LDHs and their calcined products. The adsorption of TNP on LDHs by anionic exchange is dramatically affected by the identity of the interlayer anion and LDH chlorides have an adsorption capacity of more than 4 times that of LDH carbonates. However, calcined LDH carbonates are more effective adsorbents than those derived by calcination of LDH chloride samples. This possibly reflects the higher surface area of the former species. 

Carboxy-l,3-diamino-2,4,6-trinitrobenzene 5-Nitro-2(3,5-diamino-2,4,6-trinitrophenol)-1,2,4-triazole 5-Nitroterazolecopper salt 5-Ureido-l,3-diamino-2,4,6-trinitrobenzene 7-Amino-4,6-dinitrobenzofuroxan 10-Chloro-5,10-dihydrophenarsazine Acetyltrinitro-cyclotetramethylene tetramine Acquinite... 

Negative substituents enhance the acidic properties of phenols, an effect opposite to that produced with aromatic amines. o and p-Chloro-phenols are considerably stronger acids than phenol itself, and o- and p-nitrophenols are still stronger. Trinitrophenol, picric acid, is a strong acid whose salts are neutral and not decomposed by carbonic acid or by ammonium salts. These salts of picric acid can be salted out of neutral solutions by sodium or potassium chloride. With negatively substituted phenols, it may be possible to separate the phenolate from solutions which are neutral or weakly alkaline to litmus. In doubtful cases, just as with the amines, the precipitated material must be studied to determine whether it is the free phenol or one of its salts. The color of the precipitate gives an indication in the case of the nitrophenols, since the free phenols have only a weak yellow color, whereas the alkali salts are deep yellow. Solubility tests with indififerent solvents may be used in the case of uncolored compounds. Only the free phenol can be separated from acidic solutions. 

Not surprisingly, three nitro groups have an even greater influence on the reactivity of the halogen and 1-chloro-2,4,6-trinitrobenzene (picryl chloride) is hydrolysed to 2,4,6-trinitrophenol (picric acid) in boiling water. The trivial names tell us that this aryl halide behaves as an acyl halide and the phenol as an acid. 

Several more or less expl halogen compds of Trinitrophenols are listed in Beilstein, ie 3-Chloro-2,4,5-Trinitro phenol. (02N)3CfiH(OHX i, crysts, mp 112.5-113.5° (Beil 6, [283])... 

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