化学性质
针状结晶,熔点为123℃,能够溶于乙醚和乙醇。
用途
5-硝基异酞酸二甲酯可用于合成诊断用药碘酞酰胺(新泛影),该药物适用于心血管造影、腹主动脉造影、肾盂造影及脑血管造影。
生产方法
5-硝基异酞酸与甲醇在硫酸存在下进行酯化反应,得到5-硝基异酞酸二甲酯。具体步骤为:将5-硝基异酞酸、甲醇和硫酸加入反应锅内,搅拌并加热至回流7小时后出料,冷却、过滤,并用蒸馏水洗涤滤饼,干燥即得成品,收率为90%。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-硝基异酞酸 | 5-nitrobenzene-1,3-dicarboxylic acid | 618-88-2 | C8H5NO6 | 211.131 |
5-氨基间苯二甲酸二甲酯 | dimethyl 5-aminoisophthalate | 99-27-4 | C10H11NO4 | 209.202 |
5-硝基异酞酰氯 | 5-nitro-1,3-benzenedicarbonylchloride | 13438-30-7 | C8H3Cl2NO4 | 248.022 |
间苯二甲酸二甲酯 | dimethyl Isophthalate | 1459-93-4 | C10H10O4 | 194.187 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-硝基间苯二甲酸单甲酯 | 5-nitro-1,3-benzenedicarboxylic acid, monomethyl ester | 1955-46-0 | C9H7NO6 | 225.158 |
3-(羟基甲基)-5-硝基苯甲酸甲酯 | 3-hydroxymethyl-5-nitrobenzoic acid methyl ester | 53732-08-4 | C9H9NO5 | 211.174 |
5-硝基异酞酸 | 5-nitrobenzene-1,3-dicarboxylic acid | 618-88-2 | C8H5NO6 | 211.131 |
甲基3-(氨基甲基)-5-硝基-苯甲酸酯 | 3-aminomethyl-5-nitrobenzoic acid methyl ester | 209604-82-0 | C9H10N2O4 | 210.189 |
—— | 3-methanesulfonyloxymethyl-5-nitrobenzoic acid methyl ester | 167215-63-6 | C10H11NO7S | 289.266 |
—— | 3-azidomethyl-5-nitrobenzoic acid methyl ester | 167215-64-7 | C9H8N4O4 | 236.187 |
5-氨基间苯二甲酸二甲酯 | dimethyl 5-aminoisophthalate | 99-27-4 | C10H11NO4 | 209.202 |
5-硝基异苯二醛 | 5-nitroisophthalaldehyde | 36308-36-8 | C8H5NO4 | 179.132 |
3,5-双(甲氧基羰基)异氰酸苯酯 | dimethyl 5-isocyanatoisophthalate | 46828-05-1 | C11H9NO5 | 235.196 |
—— | dimethyl 5-(N,N-dimethylamino)isophthalate | 2718-64-1 | C12H15NO4 | 237.255 |
—— | 3-[(tert-butyloxycarbonyl)aminomethyl]-5-nitrobenzoic acid | 209604-83-1 | C13H16N2O6 | 296.28 |
3-(2,3-二羟基丙基氨基甲酰基)-5-硝基苯甲酸 | 3-((2,3-dihydroxypropyl)carbamoyl)-5-nitrobenzoic acid | 122731-58-2 | C11H12N2O7 | 284.225 |
5-硝基苯-1,3-二甲酰胺 | 5-nitro-1,3-benzenedicarboxamide | 38177-07-0 | C8H7N3O4 | 209.161 |
An improved hydrogenation of nitroarenes using nano-structured iron- and cobalt-based catalysts is presented.
Flash vacuum pyrolysis at 1000-1100°C of the allyl esters of the three isomeric biphenylcarboxylic acids, of the allyl esters of the 12 biphenyldicarboxylic acids and of the three biphenyldicarboxylic anhydrides gave pyrolysates which were examined by 1H n.m.r. spectroscopy at temperatures below -50°C. In all cases the spectra showed the presence of cyclopent[a]indene and acenaphthylene together with other products. Possible mechanisms for these ring contraction and cyclization processes are discussed and the results of pyrolyses of [2,3-13C2] biphenyl-2,3-dicarboxylic anhydride, and [3,4-13C2]- and (2-2 H1)-biphenyl-3,4-dicarboxylic anhydrides are reported.