N-Dimethylaniline

N,N-dimethylaniline, CgHuN, PhNMej. Colourless oil of characteristic smell b.p. 193"C. 

N,N- dimethylaniline CsHiiN C3H3N(CH3)3 yellow hquid 2 193-19 vanillin Michler s... 

N,N-Dimethy1aniline from Nakarai Chemicals was dried over calcium hydride and freshly distilled. Three molar equivalents of N,N-dimethylaniline are used to achieve complete conversion of the n-butyllithium, because In the present particular case free n-butyllithium, if present, causes the isomerization of the (Z)-alkene to the (E)-isomer. 

Refluxed for 3h with 2 molar equivalents of acetic anhydride, then fractionally distd under reduced pressure. Also dried over BaO, distd and stored over KOH. Methods described for )V,N-dimethylaniline are applicable. 

N,N-Dimethylaniline) Dimethylbenzene, see Xylene 1,3-Dimethylbutyl acetate Dimethyl carbamoyl chloride Dimethyl-1,2-dibromo-2,2-dichloroethyl phosphate, see Naled Dimethyl ether N-N-Dimethylethylamine Dimethylethoxy silane Dimethylformamide SK... 

The mechanism proposed for the production of radicals from the N,N-dimethylaniline/BPO couple179,1 involves reaction of the aniline with BPO by a Sn-2 mechanism to produce an intermediate (44). This thermally decomposes to benzoyloxy radicals and an amine radical cation (46) both of which might, in principle, initiate polymerization (Scheme 3.29). Pryor and Hendrikson181 were able to distinguish this mechanism from a process involving single electron transfer through a study of the kinetic isotope effect. 

N -dimethylaniline into crystal violet (Ref 8), and thiourea into (H2NCS)2 (Ref 14). It is... 

It is prepd by the action of methylamine on 4-chloro-l-nitrobenzene (Ref 5) by the action of methyl iodide (Ref 6), or methyl sulfate on 4-nit roaniline (Ref 7) or by the hydrolysis of 4-nitro-N-methylformanilide with hot coned aq HC1 (Ref 8). In a study of the effect of nitric acid concn on the prods of the nitration of N,N-dimethylaniline to form Tetryl, it was isolated in low yield by the action of nitric acid, d 1.046g/cc, plus Na nitrite on N,N-dimethylaniline (Ref 10). A eutectic mixt with N-ethyl-4-nitroaniline has been patented as a stabilizer for NC (Ref 12). Studies at NPF indicate that 4-nitro-N-methyl-aniline is superior to Centralite, 2-nitrodiphenyl-amine, or Acardite in stabilizing. NC Refs 1) Beil 12, 586, (295) 1125 ... 

Registry No 19092-03-6. It has been shown to be an intermediate in the prepn of Tetryl from N,N-dimethylaniline as it can be prepd from N,N-dimethylariiline or 2,4-dinitro-N-methylaniline by the action of 70% nitric acid in 90% yield (Refs 13 14) and can be nitrated to Tetryl with a mixt of 64% sulfuric acid, 15% nitric. acid, and-21%-w yield 91.9% (Ref 14). It can be isolated from commercial Tetryl and identified by thin layer chromatography (Ref 21) N,2,6-Trinitro-N-methylaniline (2,6-dinitrophenyl-methylnitramine), mp 110.8 874.9kcal/... 

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)... 

N,2,4,5-Tetranitro-N-methylaniline (2,4,5-trinitrophenyl-N-m ethylnitramine), needles from nitric acid mp 143.5° prepd by nitration of 2,4,5-trimtro-N-methylaniline, or by the action of 90% nitric acid on 2,4,5-trinitro-N.N-dimethylaniline (Refs 1 3) 2,3,4,6-Tetranitro-N-methylaniline, mp 127° prepd by the action of sulfuric acid on N,2,4,5-tetranitro-N-methylaniline (Refs 2 3)... 

Dinitro-N-n/troso-N-methylanffine, 2,5-dinitrophenvl-N-methylnitrosamine, orange needles or plates from EtOH prepd by the action of 50% aq Na nitrite on 2,5-dinitro-N,N-dimethylaniline in aq HC1 (Refs 2 8)... 

Dinitro-N-nitroso-N-methylaniline (3.4-dinitrophenyl-N-methylnitrosamine), mp 108—09°, prepd by the action of nitric acid (d 1.37—.40 g/cc) contg nitrous acid on 3,4-dinit ro-N,N-dimethylaniline (Refs 4 7)... 

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