Dimethyl 4-aminobenzene

Dimethyl-aminobenzene-4-diozonium Perchlorate. Same as N,N-Dimethyl-aniline-diazonium Perchlorate... 

Similar processes are observed for the monosubstituted aminobenzenes, as shown for aniline [Fig. 5(a)]. Such efficiency spectral curves were obtained also for methyl-, dimethyl-aniline, and benzylamine [Figs. 

Dihydroxydimethyldiazo-aminobenzene and deriv 2,2 -dihydroxy-4,4 -dimethyl-3,5,3, 5 -tetra-nitrodiazoaminobenzene 5 D1291... 

The second is a comparably contemporary study94 on both the parent p-aminobenzene-sulfonamide and p-amino-fV-(3,4-dimethyl-5-isoxazolyl)benzenesulfonamide, known in the medicinal community as sulfanilamide and sulfisoxazole, respectively. As solids, the enthalpies of formation are —458.3 1.6 and —180.1 3.8 k.l mol 1, respectively. The former species may be compared with benzenesulfonamide, for which we cite only the most recent enthalpy of formation95, —320.1 1.6 k.l mol 1. As has been so often the case, we cannot reconcile the two sets of values. We are immediately thwarted in the comparison of the latter species. We lack the desired data for the desamino species or for any isoxazolamine-containing species. 

Analogously, 4-acyl-l,2-dimethylphenothiazin-3-ones have been synthesized by the reaction of 2-aminobenzene-thiol and 2-acyl-5,6-dimethyl-1,4-benzoquinones (81JHC645). This method was also used to prepare hydroxyphenothiazines, hard to obtain in other ways. Thus, hydroxyphenothiazines such as 85 have been prepared... 

Electrochemical homopolymerization of poly(aniline-N-alkylsulfonates) (alkyl = propyl, butyl and pentyl) in acetonitrile containing 0.1 M NaC104 and 5 % (v/v) 0.3 M HCIO4 was carried out by Rhee et al. [144]. The polymers were prepared on a platinum electrode by cyclic voltammetry (0.0 to 1.0 V vs Ag/AgCl) or potentiostatic techniques (1.0 V). These polymers were found to form liquid crystalline solutions in water. The conductivity of poly(aniline-N-propanesulfonic acid) and poly(aniline-N-butanesulfonic acid) was reportly 9 x 10 and 6 x 10 S/cm, respectively. Electrochemical polymerization of orthanilic acid, metanilic acid and sulfonic acid and their copolymerization with aniline in dimethyl sulfoxide containing tetrabutyl ammonium perchlorate were carried out by Sahin et al. [145]. These polymers and copolymers were found to be soluble in water, dimethyl sulfoxide and N-methylpyrrolidinone. The conductivity of orthanilic acid, metanilic acid and sulfonic acid was reportly 0.052,0.087 and 0.009 S/cm, respectively. The conductivity of copolymers for these three isomers of aminobenzene-sulfonic acid was reported as 0.094, 0.26 and 0.033 S/cm, respectively. Sahin et al. [146] have also prepared the copolymers of these three isomers with aniline in acetonitrile containing fluorosulfonic acid (FSO3H). The copolymers were found to be soluble in water, dimethyl sulfoxide and N-methylpyrrolidinone. 

An intermediate has been isolated from the reaction between o-aminobenzene-thiol and dimethyl cyanimidodithioate (see Vol. 3, pp. 617, 618) this yields bis(benzothiazol-2-yI)amine, thus further elucidating the mechanism. ... 

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