中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-nitro-8-naphthalenesulfonic acid | 117-41-9 | C10H7NO5S | 253.235 |
The chlorides of nitronaphthalene sulphonic acids are reacted with amino or hydroxy or amino-acids are reacted with amino or hydroxy or amino-hydroxy compounds, especially of the aromatic or heterocyclic series to produce compounds as follows:- p : p1 - bis - (1 - Methyl - 5 - nitronaphthalene - 4 - sulphonic acid) - diphenyl ester, m.p. 224 DEG C. (example 2) made by stirring 1-methyl-5-nitronaphthalene - 4 - sulphochloride with p : p1 - dihydroxy-diphenyl and caustic soda in acetone, solvent removal and re-crystallization. 1 - Methyl - 5 : x - dinitronaphthalene - 4 - sulphonic acid - (11 - phenyl - 31 - methyl - 51 - pyrazole) - ester (decomposes at 100 DEG C.) made by heating the corresponding acid, which is itself made by nitrating 1-methylnaphthalene-4-sulphochloride, with the corresponding pyrazolone and caustic soda in acetone, solvent removal and washing after acidification. 1 - Methyl - 5 - x - dinitronaphthalene - 4 - sulphonic acid - [61 - hydroxy - pyridino - (111 : 211 : 11 : 21) - benzimidazole] ester (decomposes at 190 DEG C.) is made similarly using the corresponding benzimidazole. p : p1 - bis - (1 - Methyl - 5 - x - dinitronaphthalene - 4 - sulphonamido - diphenylamine (decomposes at 145 DEG C.) (example 3) is made similarly using diamino-diphenylamine. p : p1 - bis - (1 - Methyl - 5 : x - dinitronaphthalene - 4 - sulphonamido) - 2 : 21 - dimethoxy - diphenylsulphide (decomposes at 165 DEG C.) i made similarly using 4 : 41-diamino-2 : 21-dimethoxy-diphenylsulphide. The corresponding sulphone is made analogously. p : p1 - bis - (1 - Methyl - 8 - nitronaphthalene - 4 - sulphonamido) - diphenylmethane (decomposes at 160 DEG C.) is made similarly from the corresponding sulphochloride and diaminodiphenylmethane. N : N1 - bis - (1 - methyl - 5 : x - dinitronaphthalene - 4 - sulphonyl) - 4 (or else 7) - aminobenzimidazole (decomposes at 250 DEG C.) (example 4) is made similarly from the corresponding sulphochloride and 7-amino-benzimidazole. p : p1 - bis - (1 : 8 - Nitronaphthalene - sulphonamido)-diphenylmethane (m.p. 170 DEG C.) (example 5) is made similarly from the corresponding sulphochloride and diaminodiphenylmethane. The bis - [naphthyoquinone - (1 : 2) - diazide - (2) - 5 - sulphonic acid] ester of bis - (2 - hydroxynaphthyl 1) methane (example 6) is made by condensation thereof using sodium carbonate in acetone. O - N - bis - (1 : 8 - nitronaphthalene - sulphonyl) - p - N - methylaminophenol (m.p. 250 DEG C.) (example 7) is made by condensing the corresponding sulphochloride with metol. p - [Naphthoquinone - (11 : 21) - diazide - (21) - 51 - sulphonamido] - phenol - 1 - nitronaphthalene-8-sulphonic acid ester (m.p. 220 DEG C.) (example 9) is made by condensing the condensation product of metol and 2-diazo-1-naphthol - 5 - sulphonic acid with 1 : 8 - nitronaphthalene-sulphonic acid chloride in alkaline dioxane.