Amines nitroso compds

Trinitro-N-methylaniline (N-methyl picra-mide), yellow needles from EtOH contg acid, mp /l4.8° (Refs 4 7) the UV spectrum has a peak at 340 and a shoulder at 410—20m (Ref 19) CA Registry No 1022-07-7. It is prepd by the hydrolysis of the N nitroso compd (see below) at 70—80° (Ref 5) by the action of coned sulfuric acid (Ref 8) or UV light (Ref 12) on Tetryl by the action of methyl amine on Ethyl Picrate (Ref 18) or Tetryl (Ref 7) or by the action of nitric acid (d 1.42g/cc) at 0° on N,N-dimethylaniline (Ref 10). It is present in crude Tetryl and is the active der-matitic agent in the latter (Ref 12). It can be isolated from crude Tetryl and identified by thin layer chromatography (Ref 21)... 

Amidines, N-(l,2,4-thiadiazol-5-yl)-, rearrangement, 56, 103 Amidoximes, 1,2,4-oxadiazol-3-yl-, rearrangements, 56, 55 Amidyl radicals, see Radicals, nitrogen Amination, asymmetric, of carboxylic acids by chiral nitroso compds, 57, 41 Amines, catalysis of 3-acyl-1,2,4-oxadiazole arylhydrazone rearrangement by, 56, 87 Amines, thionitroso-, formation, 55, 20 Aminium cation radicals, see Radicals, nitrogen... 

Metkoxyphenyl)-t,4-benzenediamine 4-amino-4J -methoxy diphenylamine 4-methoxy-4 -aminodiphenylamine Vari-amine Blue base. C,jH14NjO mol wi 214.26. C 72.87%, H 6.59%. N 13.08%, O 7.47%. Prepd from the corresp nitroso compd Witlstatter, Kubti, Ber. 42, 4139 (1909). 

Peroxybenzoic acid Nitroso compds. from amines... 

Palladium-carbon hydrazine Amines from nitroso compds. 

In studying the reactions betw nitroso-acylamines and diazo esters several expl compds were prepd. Some reactions involved explosion hazards) 4) F. Bucci, AnnChim (Rome), 41, 587-93(1951) CA 47, 3443 (1953) (Reactions of alkali nitrites with some otg amines, such as urea may result in explns) 5) G. Armistead, ChemEngt-Progress 48, 5-10(1952) CA 46, 2298 (1952) (A review of expln hazards)... 

Dinitro N-nitroso-2- chloro-N me thy laniline or (4,6-Dinitro-2 chlorophe nyl) methylnitros-amine, compd not recrystd because it decompd when petr eth was added to its benz soln at RT was obtd by treating an ice-cold soln of 2-chloro-N-merhylaniline with HN03 NaN02 (Ref 3)... 

A variety of reducing agents have been used hut the usual ones are -sodium methoxide in MeOH or sodium arsenite. The azoxy compd results from the condensation of the nitroso and the hydroxylamine compds produced during the reduction. The nitroso and hy-droxyi amine compds can be prepd separately and condensed together to give the azoxy compd. Even when the nitroso and the hydroxylamine compds contain different substituted groups, with only one or two exceptions sym azoxy compds (R = R ) are formed, and not the unsym azoxy compd, as expected. Another method for prepg azoxy compds is by the oxidn of azo compds ... 

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