化学性质
白色或浅黄色结晶。熔点为72℃,沸点在190℃/10mmHg下测定。该物质易溶于乙醇和乙醚,可溶于苯和冰醋酸,并且微溶于水。受热时容易升华。
用途
主要用于有机合成、照相以及制备席夫碱(Schiff's bases)。
生产方法
以N,N-二甲基苯胺为起始原料,经以下步骤制得产品:首先将N,N-二甲基苯胺和浓盐酸配成溶液,并加入冰块冷却至5℃。搅拌后,缓缓加入亚硝酸钠溶液,保持温度在8℃以下,1小时内加完,再放置1小时后过滤。滤饼先用盐酸洗涤,然后用乙醇洗涤,在空气中干燥,得到对亚硝基二甲苯胺盐酸盐。将上述盐酸盐及无水碳酸钠加入乙醇中,加热半小时后过滤。将滤液与2,4-二硝基甲苯一起搅拌并加热5小时,冷却后滤出缩合物,并用乙醇重结晶一次。然后将缩合物加入盐酸中,通入水蒸气15分钟,冷却,倾去水层,再加稀盐酸通入水蒸气搅拌。最后滤出固体物,用水洗涤,在真空干燥器中干燥,得到2,4-二硝基苯甲醛。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,4-二硝基甲苯 | 2,4-DNt | 121-14-2 | C7H6N2O4 | 182.136 |
2,4-二硝基苯甲醇 | 2,4-dinitrobenzyl alcohol | 4836-66-2 | C7H6N2O5 | 198.135 |
2,4-二硝基苄溴 | 2,4-dinitrobenzyl bromide | 3013-38-5 | C7H5BrN2O4 | 261.032 |
—— | 2,2',4,4'-tetranitrostilbene | 37951-28-3 | C14H8N4O8 | 360.24 |
—— | N-(2,4-dinitro-benzyl)-aniline | 28268-28-2 | C13H11N3O4 | 273.248 |
—— | 4-[(2,4-dinitrophenyl)methylideneamino]-N,N-dimethylaniline | 57862-46-1 | C15H14N4O4 | 314.301 |
对硝基苯甲醛 | 4-nitrobenzaldehdye | 555-16-8 | C7H5NO3 | 151.122 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
苯酰胺,2,4-二硝基- | 2,4-Dinitro-benzamid | 13296-87-2 | C7H5N3O5 | 211.134 |
2,4-二硝基苯甲酸 | 2,4-dinitrobenzoic acid | 610-30-0 | C7H4N2O6 | 212.119 |
2-氨基-4-硝基苯甲醛 | 2-amino-4-nitrobenzaldehyde | 109466-84-4 | C7H6N2O3 | 166.136 |
2,4-二硝基苯甲醇 | 2,4-dinitrobenzyl alcohol | 4836-66-2 | C7H6N2O5 | 198.135 |
—— | 2,4-dinitrobenzophenone | 50709-84-7 | C13H8N2O5 | 272.217 |
1-乙烯基-2,4-二硝基苯 | 2,4-dinitrostyrene | 2287-45-8 | C8H6N2O4 | 194.147 |
2,4-二硝基苯甲腈 | 2,4-dinitrobenzonitrile | 4110-33-2 | C7H3N3O4 | 193.119 |
2-氨基-4-硝基苯甲酸 | 4-Nitroanthranilic acid | 619-17-0 | C7H6N2O4 | 182.136 |
—— | 2,4-dinitrobenzaldehyde oxime | 3236-33-7 | C7H5N3O5 | 211.134 |
—— | (E)-2,4-dinitrobenzaldehydeoxime | 21013-95-6 | C7H5N3O5 | 211.134 |
2,4-二硝基苯甲酰苯胺 | 2,4-dinitro-benzoic acid anilide | 22978-56-9 | C13H9N3O5 | 287.232 |
—— | E-1-(4-methylphenyl)-2-(2,4-dinitrophenyl)ethene | 93866-23-0 | C15H12N2O4 | 284.271 |
—— | bis-(2,4-dinitro-benzylidene)-hydrazine | 22014-28-4 | C14H8N6O8 | 388.253 |
—— | 2,4-dinitrobenzaldehyde guanylhydrazone | 23817-66-5 | C8H8N6O4 | 252.189 |
2H-1,4-噻嗪,5-(1-甲基乙基)-,1,1-二氧化 | 2,4-Dinitro-benzaldehyd-N,N-dimethylhydrazon | 90535-55-0 | C9H10N4O4 | 238.203 |
—— | 2,4-dinitro-1-[(E)-2-nitroethenyl]benzene | 1411975-51-3 | C8H5N3O6 | 239.144 |
1-(2,4-二硝基苯基)乙醇 | α-(2,4-dinitrophenyl)ethyl alcohol | 111843-76-6 | C8H8N2O5 | 212.162 |
—— | (E)-4-(2,4-dinitrophenyl)but-3-en-2-one | —— | C10H8N2O5 | 236.184 |
—— | 2,4-dinitro-cinnamic acid | 85818-66-2 | C9H6N2O6 | 238.156 |
—— | 2.4-dinitro-trans-cinnamic acid | 101410-61-1 | C9H6N2O6 | 238.156 |
—— | 2,4-dinitrobenzylidenemalononitrile | 131223-03-5 | C10H4N4O4 | 244.166 |
—— | [(2,4-Dinitrophenyl)methylideneamino]thiourea | —— | C8H7N5O4S | 269.241 |
—— | 2,4-dinitro-benzaldehyde-semicarbazone | 16004-45-8 | C8H7N5O5 | 253.174 |
—— | 2,3’,4-trinitro-stilbene | 65200-02-4 | C14H9N3O6 | 315.242 |
—— | <2,4-Dinitro-benzyliden>-anilin | —— | C13H9N3O4 | 271.232 |
2,4-二硝基苯甲醛苯腙 | 2,4-Dinitro-benzaldehyd-phenylhydrazon | 74381-46-7 | C13H10N4O4 | 286.247 |
2,4-二硝基肉桂酸甲酯 | 2,4-dinitro-cinnamic acid methyl ester | 840526-76-3 | C10H8N2O6 | 252.183 |
—— | (E)-ethyl 3-(2,4-dinitrophenyl)acrylate | 87840-72-0 | C11H10N2O6 | 266.21 |
—— | N-(2,4-dinitrobenzylidene)cyclohexanamine | 553662-91-2 | C13H15N3O4 | 277.28 |
—— | 2,4-dinitrobenzaldehyde ethyleneacetal | 475114-60-4 | C9H8N2O6 | 240.172 |
—— | 4-chloro-N-(2,4-dinitrobenzylidene)aniline | 354538-08-2 | C13H8ClN3O4 | 305.677 |
—— | Benzenamine, 4-chloro-N-[(2,4-dinitrophenyl)methylene]-, (Z)- | 149742-64-3 | C13H8ClN3O4 | 305.677 |
—— | 4-(N,N-dimethylamine)-N-(2,4-dinitrobenzylidene)aniline | 57862-46-1 | C15H14N4O4 | 314.301 |
—— | 4-[(2,4-dinitrophenyl)methylideneamino]-N,N-dimethylaniline | 57862-46-1 | C15H14N4O4 | 314.301 |
—— | (2,4-dinitrophenyl)(phenyl)methanol | —— | C13H10N2O5 | 274.233 |
N-(2,4-二硝基苯亚甲基)-4-甲氧基苯胺 | N-(2,4-dinitrobenzylidene)-4-methoxyaniline | 354538-06-0 | C14H11N3O5 | 301.258 |
—— | N-(2,4-dinitro-benzyliden)-p-anisidine | 149742-61-0 | C14H11N3O5 | 301.258 |
—— | (E)-1-(4-methoxyphenyl)-3-(2,4-dinitrophenyl)prop-2-en-1-one | 1365644-14-9 | C16H12N2O6 | 328.281 |
—— | (E)-O-p-nitrophenyl-2,4-dinitrobenzaldoxime | —— | C13H8N4O7 | 332.229 |
—— | 1-(2,4-dinitrophenyl)but-3-en-1-ol | 322647-88-1 | C10H10N2O5 | 238.2 |
—— | (2,4-dinitro-benzylidene)-malonic acid | 112768-00-0 | C10H6N2O8 | 282.166 |