在1000 mL圆底烧瓶中加入15.2 g(100 mmol)香兰素、200 mL体积分数为90%的醋酸和50.0 g(125 mmol)聚乙二醇400,搅拌下缓慢滴入24.32 g(158 mmol)硝酸铈铵水溶液,在60°C反应1小时。通过TLC跟踪反应进程,展开剂为乙酸乙酯:石油醚=1:1,直至反应物完全转化为产物后停止搅拌。随后将混合物倒入适量冰水中,观察到黄色固体析出,进行抽滤并用蒸馏水洗涤2-3次,得到5-硝基香兰素的粗产品,收率为70%。
化学性质: 5-硝基香兰素为黄色粉末,熔点为177-179℃。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5-nitroveratral | 22027-96-9 | C9H9NO5 | 211.174 |
—— | 5-nitrovanillic alcohol | 37987-22-7 | C8H9NO5 | 199.163 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 4-hydroxy-3-isopropoxy-5-nitrobenzaldehyde | 1283118-25-1 | C10H11NO5 | 225.201 |
4-羟基-3-硝基-5-丙氧基-苯甲醛 | 4-hydroxy-3-nitro-5-propoxybenzaldehyde | 871085-51-7 | C10H11NO5 | 225.201 |
—— | 5-nitroveratral | 22027-96-9 | C9H9NO5 | 211.174 |
5-硝基香草酸 | 5-nitrovanillic acid | 15785-54-3 | C8H7NO6 | 213.147 |
3-苄氧基-4-羟基-5-硝基-苯甲醛 | 3-benzyloxy-4-hydroxy-5-nitrobenzaldehyde | 312327-13-2 | C14H11NO5 | 273.245 |
3,4-二羟基-5-硝基苯甲醛 | 3,4-dihydroxy-5-nitrobenzaldehyde | 116313-85-0 | C7H5NO5 | 183.12 |
—— | 3-methoxy-4-hydroxyethoxy-5-nitrobenzaldehyde | 205653-98-1 | C10H11NO6 | 241.2 |
—— | 4-propoxy-3-methoxy-5-nitrobenzaldehyde | —— | C11H13NO5 | 239.228 |
—— | 4-hydroxy-3-methoxy-5-nitrobenzonitrile | 79743-73-0 | C8H6N2O4 | 194.147 |
—— | 8-nitro-2,3-dihydrobenzo[b][1,4]dioxine-6-carbaldehyde | 1283118-07-9 | C9H7NO5 | 209.158 |
—— | 4-butoxy-3-methoxy-5-nitrobenzaldehyde | 123947-77-3 | C12H15NO5 | 253.255 |
—— | 5-nitrovanillic alcohol | 37987-22-7 | C8H9NO5 | 199.163 |
1-(3,4-二甲氧基-5-硝基苯基)乙酮 | 1-(3,4-dimethoxy-5-nitrophenyl)ethan-1-one | 134610-32-5 | C10H11NO5 | 225.201 |
3,4-二甲氧基-5-硝基苯甲酸 | 3,4-dimethoxy-5-nitrobenzoic acid | 91004-48-7 | C9H9NO6 | 227.174 |
—— | 3-nitro-4,5-dipropoxybenzaldehyde | 1283119-86-7 | C13H17NO5 | 267.282 |
—— | 3-benzyloxy-4-methoxy-5-nitrobenzaldehyde | 312327-14-3 | C15H13NO5 | 287.272 |
—— | 3,4-dimethoxy-5-nitrobenzoyl chloride | 134610-30-3 | C9H8ClNO5 | 245.619 |
—— | 4-benzyloxy-3-methoxy-5-nitrobenzaldehyde | 127027-58-1 | C15H13NO5 | 287.272 |
—— | methyl 2-(4-formyl-2-methoxy-6-nitrophenoxy)acetate | 1246085-12-0 | C11H11NO7 | 269.211 |
3,4-二甲氧基-N-甲基-5-硝基苯甲酰胺 | N-methyl-(3,4-dimethoxy-5-nitrobenzamide) | 866109-51-5 | C10H12N2O5 | 240.216 |
—— | 3-methoxy-5-nitro-4-[(4-nitrophenyl)methoxy]benzaldehyde | 1261736-55-3 | C15H12N2O7 | 332.269 |
—— | 4-(ethoxycarbonylmethoxy)-3-methoxy-5-nitrobenzaldehyde | 711021-32-8 | C12H13NO7 | 283.238 |
—— | 3,4-dimethoxy-5-nitrobenzyl chloride | 42877-11-2 | C9H10ClNO4 | 231.636 |
—— | 6-Nitro-2-methoxy-4-(2t-nitro-vinyl-(1r))-phenol | 70727-00-3 | C9H8N2O6 | 240.172 |
—— | 4-(4-hydroxy-3-methoxy-5-nitrophenyl)buten-2-one | 124946-66-3 | C11H11NO5 | 237.212 |
—— | 5-nitroferulic acid | 5438-42-6 | C10H9NO6 | 239.185 |
—— | 5-Nitro-vanillin-dimethylacetal | 22027-95-8 | C10H13NO6 | 243.216 |
—— | 3-(4-Hydroxy-3-methoxy-5-nitrophenyl)-1-phenylprop-2-en-1-one | 802967-77-7 | C16H13NO5 | 299.283 |
—— | (2E)-3-(4-hydroxy-3-methoxy-5-nitrophenyl)acrylohydrazide | 1394115-41-3 | C10H11N3O5 | 253.214 |
—— | methyl 2-(4-formyl-2-methoxy-6-nitrophenoxy)propanoate | 1246081-89-9 | C12H13NO7 | 283.238 |
—— | 1-(3,4-dimethoxy-5-nitrophenyl)-2-nitroethane | 114547-22-7 | C10H12N2O6 | 256.215 |
—— | 2-methoxy-6-nitro-4-((piperidin-1-yl)methyl)phenol | 415957-61-8 | C13H18N2O4 | 266.297 |
—— | (2E)-3-(3,4-dimethoxy-5-nitrophenyl)acrylic acid | 949887-97-2 | C11H11NO6 | 253.211 |
—— | 4-(1,3-Dioxolan-2-yl)-2-methoxy-6-nitrophenol | 773101-48-7 | C10H11NO6 | 241.2 |
3-氨基-4-羟基-5-甲氧基苯甲醛 | 3-amino-4-hydroxy-5-methoxybenzaldehyde | 854873-06-6 | C8H9NO3 | 167.164 |
—— | 1-phenyl-5-(3,4-dimethoxy-5-nitrophenyl)-1,4-pentadiene-3-one | 64838-05-7 | C19H17NO5 | 339.348 |
—— | 2-Phenylethyl 3-(4-hydroxy-3-methoxy-5-nitrophenyl)prop-2-enoate | 1103519-47-6 | C18H17NO6 | 343.336 |
—— | 4-Formyl-2-methoxy-6-nitrophenyl trifluoromethanesulfonate | 1021493-52-6 | C9H6F3NO7S | 329.21 |
—— | 8-nitro-2,3-dihydro-benzo[1,4]dioxine-6-carbonitrilebenzonitrile | 698986-32-2 | C9H6N2O4 | 206.158 |
—— | 2-cyano-3-(3-methoxy 4-hydroxy-5-nitrophenyl)acrylic acid | —— | C11H8N2O6 | 264.194 |
—— | N'-[(1E)-4-hydroxy-3-methoxy-5-nitrobenzylidene]-2-naphthohydrazide | 1394115-39-9 | C19H15N3O5 | 365.345 |
—— | (2E)-3-(4-hydroxy-3-methoxy-5-nitrophenyl)-N'-[(1E)-benzylidene]acrylohydrazide | 1394115-35-5 | C17H15N3O5 | 341.323 |
—— | 3-amino-4,5-dimethoxybenzaldehyde | —— | C9H11NO3 | 181.191 |
—— | 1-(3-methoxy-4-hydroxyethoxy-5-nitrophenyl)-4-(3,4,5-trimethoxyphenyl)-1,4-butanedione | 205653-99-2 | C22H25NO10 | 463.441 |
—— | N'-[(1E)-4-hydroxy-3-methoxy-5-nitrobenzylidene]-3-phenylpropanohydrazide | 1394115-37-7 | C17H17N3O5 | 343.339 |
—— | N-[(4-hydroxy-3-methoxy-5-nitrophenyl)methylideneamino]pyridine-4-carboxamide | 93606-99-6 | C14H12N4O5 | 316.273 |
—— | 1-(2-Bromophenyl)-3-(4-hydroxy-3-methoxy-5-nitrophenyl)prop-2-en-1-one | 802930-83-2 | C16H12BrNO5 | 378.179 |
—— | (E)-3-Nitro4-hydroxy-5-methoxystyryl-4-methoxybenzylsulfone | 334969-41-4 | C17H17NO7S | 379.39 |
—— | (E)-3-(3,4-dihydroxy-5-nitrophenyl)acrylic acid | —— | C9H7NO6 | 225.158 |
—— | (2E)-3-(3,4-dihydroxy-5-nitrophenyl)-1-phenylprop-2-en-1-one | —— | C15H11NO5 | 285.256 |
—— | 4-Chloro-3-methoxy-5-nitro-benzaldehyde | 83163-84-2 | C8H6ClNO4 | 215.593 |
—— | 1-(2,4-Dichlorophenyl)-3-(4-hydroxy-3-methoxy-5-nitrophenyl)prop-2-en-1-one | 802929-51-7 | C16H11Cl2NO5 | 368.173 |
—— | 2-Hydroxy-3.5-dimethoxynitrobenzol | 90222-93-8 | C8H9NO5 | 199.163 |
—— | (2E)-3-(1,3-benzodioxol-5-yl)-N'-[(1E)-4-hydroxy-3-methoxy-5-nitrobenzylidene]acrylohydrazide | 1394115-28-6 | C18H15N3O7 | 385.333 |
三氟-甲烷磺酸2-苄氧基-4-甲酰基-6-硝基苯酯 | trifluoro-methanesulfonic acid 2-benzyloxy-4-formyl-6-nitro-phenyl ester | 312731-70-7 | C15H10F3NO7S | 405.308 |
(E)-3-O-甲基恩他卡朋 | (2E)-2-cyano-3-(3-methoxy-4-hydroxy-5-nitro-phenyl)-N,Ndiethylprop-2-enamide | 857629-78-8 | C15H17N3O5 | 319.317 |
—— | 2-cyano-N,N-diethyl-3-(4-hydroxy-3-methoxy-5-nitrophenyl)prop-2-enamide | 146698-91-1 | C15H17N3O5 | 319.317 |
—— | 2-cyano-3-(4-hydroxy-3-methoxy-5-nitrophenyl)-N-phenylprop-2-enamide | —— | C17H13N3O5 | 339.307 |
6-甲氧基-2,4-二硝基苯酚 | 2-methoxy-4,6-dinitrophenol | 4097-63-6 | C7H6N2O6 | 214.134 |
—— | (2E)-3-(3,4-dimethoxy-5-nitrophenyl)-N'-[(1E)-(4-hydroxy-3-methoxy-5-nitrobenzylidene)]acrylohydrazide | 1394115-32-2 | C19H18N4O9 | 446.373 |
—— | N-(3-methoxy-5-nitro-4-(4-nitrobenzyloxy)benzyl)-2H-tetrazol-5-amine | —— | C16H15N7O6 | 401.338 |
—— | 2.3.5-Trimethoxynitrobenzol | 206872-09-5 | C9H11NO5 | 213.19 |
恩他卡朋杂质10 | (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylamide | 158693-01-7 | C10H7N3O5 | 249.183 |
2,3-二甲氧基-5-甲基苯胺 | 3-Amino-4,5-dimethoxy-toluol | 1128-31-0 | C9H13NO2 | 167.208 |
—— | (3-amino-4,5-dimethoxyphenyl)(3,4,5-trimethoxyphenyl)methanone | 1609084-44-7 | C18H21NO6 | 347.368 |
—— | 2-(t-butyldimethylsilyloxy)-2-(3,4-dimethoxy-5-nitrophenyl)ethanonitrile | 114574-54-8 | C16H24N2O5Si | 352.462 |
—— | 2-cyano-3-(3-hydroxy-4-methoxy-5-nitrophenyl)prop-2-eneamide | —— | C15H17N3O5 | 319.317 |
—— | 3,4-dihydro-2H-8-methoxy-1,4-benzoxazin-6-carbaldehyde | 1367348-64-8 | C10H11NO3 | 193.202 |
恩他卡朋 | entacapone | 130929-57-6 | C14H15N3O5 | 305.29 |