Benzenesulfonic 2-methyl-5-nitro

Orthanilic acid was first made by the reduction of nitro-benzenesulfonic acid by ammonium sulfide.2 This reduction has also been carried out electrolyticallv, and by the use of iron or zinc.3 The acid has also been made by the rearrangement of phenylsulfamic acid,4 by the action of sodium hypobromite upon potassium o-carbaminebenzenesulfonate,5 by the reduction of the mixed nitrobenzenesulfonic acids followed by separation of the isomers,6 by the action of methyl alcohol upon o-nitro-phenylsulfurchloride,7 by the action of acid upon diacetyl diphenylsulfamide,8 by the debromination of />-bromoaniline-e-sulfonic acid,9 by the reduction of 1,2,6-aminothiophenolsulfonic acid,10 and by the hydrolysis and reduction of e-nitrobenzene-sulfonyl chloride, which was obtained from di-o-nitrophenyl-disulfide.11... 

Beilstein Handbook Reference) 4-Nitro-2-toluenesulfonic acid 4-Nitrotoluene-2-sulphonic acid 5-Nitro-2-methylbenzenesulfonic acid 5-NitroK)-toluenesulfonic acid Benzenesulfonic acid, 2-methyl-5-nitro- BRN 2216176 EINECS 204-445-3 HSDB 5470 Kyselina 4-nitrotoluen-2-sulfonova p-Nitrotoluene-o-sulfonic xid NSC 9580 Pntos. 

Finally, the fusion of bases 41 or 228 with two equivalents of methyl o-nitro-benzenesulfonate at 140-150 °C (74MI1) furnished the same product (disalt 230) in 90-95% yield. 

The sulfonate esters decompose in aqueous solutions to the corresponding sulfonic acids and alcohols. The rate of decomposition of the sulfonate esters of primary alcohols depends on the stability of the sulfonate ion formed upon hydrolysis. For example, in sodium phosphate at pH 7.9 and 25°, ethyl 2-benzothiazolesulfonate (Ha) and methyl 4-nitro-benzenesulfonate (I) have half-lives of about 12 and 60 min, respectively. Isopropyl 2-benzothiazolesulfonate (Ilb) proved to be very reactive to... 

Odier diemistries that have been employed as photoadd generators in chemically amplified resist compositions include imino sulfonates (22), 4-nitro-benzenesulfonic add derivatives (23), disulphone compounds 24), sulfonyl substituted diazomethanes (25), dibenzyl sulfones 26), and aryl-bu-trichloro-methyl-s-triazines (27). 

Benzothiazolyl[(5-nitro-2-pyridinyl) hydrazono]methyl]benzenesulfonic acid, B-00I07... 

Methyl-2-pyridinyl) hydrazono]-2-pyridinylmethyl] benzenesulfonic acid, M-00287 3-[[(5-Nitro-2-pyridinyl) hydrazono]-2-pyridinylmethyl] benzenesulfonic acid, N-00151 3-[[(5-Chloro-2-pyridinyl) hydrazono]-2-pyridinylmethyl] benzenesulfonic acid, C-00257 6-Dodecyl-6-(2-hydroxy-3,5-dinitrobenzyl)-1,4,8,11 -tetraoxacyclotetradecane, D-01145... 

---