5-溴吲哚-2-羧酸乙酯是一种酯类有机物,可用作医药中间体。
概述5-溴吲哚-2-羧酸乙酯是最常见的芳香杂环结构和合成砌块之一,广泛存在于天然产物及人体生理活性物质中。它也是医药和功能材料中的重要结构单元,被称为“优势结构”。鉴于其在多个领域的重要性,吲哚的合成及其官能团化方法从上世纪开始就一直在不断发展改进。这些合成方法大体可以分为两类:当量反应类和催化反应类。
制备5-溴吲哚-2-羧酸乙酯的制备如下:
取一25 mL Schlenk反应管,加入对溴苯胺69 mg、醋酸钯9 mg和分子筛80 mg。注入2-氧代丙酸乙酯93 mg、醋酸96 mg和二甲基亚砜2 mL,接一200 mL 的氧气球,于70℃下搅拌18小时。
反应结束后,加入乙酸乙酯15 mL 稀释反应液,过滤后用盐水10 mL 洗涤两次。分出有机相,水相用乙酸乙酯萃取一次,合并有机相进行柱层析分离,最终得到目标产物纯品5-溴吲哚-2-羧酸乙酯50 mg,产率为47%。
化学性质白色粉末
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-溴吲哚-2-羧酸 | 5-bromo-2-indolecarboxylic acid | 7254-19-5 | C9H6BrNO2 | 240.056 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-溴吲哚-2-羧酸 | 5-bromo-2-indolecarboxylic acid | 7254-19-5 | C9H6BrNO2 | 240.056 |
—— | Ethyl 1-amino-5-bromo-1H-indole-2-carboxylate | —— | C11H11BrN2O2 | 283.125 |
5-氰基-1H-吲哚-2-羧酸乙酯 | ethyl 5-cyano-1H-indole-2-carboxylate | 105191-13-7 | C12H10N2O2 | 214.224 |
5-溴-1-甲基-1H-吲哚-2-羧酸乙酯 | ethyl 5-bromo-1-methyl-1H-indole-2-carboxylate | 91844-20-1 | C12H12BrNO2 | 282.137 |
3,5-二溴-1H-吲哚-2-甲酸乙酯 | 3,5-dibromo-indole-2-carboxylic acid ethyl ester | 77185-78-5 | C11H9Br2NO2 | 347.006 |
—— | ethyl 5-(1-propynyl)-indole-2-carboxylate | 796870-43-4 | C14H13NO2 | 227.263 |
5-溴-3-羟基-1H-吲哚-2-羧酸乙酯 | ethyl 5-bromo-3-hydroxyindole-2-carboxylate | 153501-30-5 | C11H10BrNO3 | 284.109 |
—— | ethyl 5-bromo-3-fluoro-1H-indole-2-carboxylate | 1222175-23-6 | C11H9BrFNO2 | 286.1 |
—— | 5-Brom-3-chlor-indol-2-carbonsaeure-ethylester | 91062-61-2 | C11H9BrClNO2 | 302.555 |
—— | ethyl 5-bromo-3-iodo-1H-indole-2-carboxylate | 902765-49-5 | C11H9BrINO2 | 394.006 |
—— | ethyl 5-phenyl-1H-indole-2-carboxylate | 66616-69-1 | C17H15NO2 | 265.312 |
2-羟甲基-5-溴-1H-吲哚 | (5-bromo-1H-indol-2-yl)methanol | 53590-48-0 | C9H8BrNO | 226.073 |
5-氯吲哚-2-甲醛 | 5-bromo-1H-indole-2-carbaldehyde | 53590-50-4 | C9H6BrNO | 224.057 |
—— | 5-pyridin-4-yl-1H-indole-2-carboxylic acid ethyl ester | 1349698-44-7 | C16H14N2O2 | 266.299 |
3,5-二溴-1H-吲哚-2-羧酸 | 3,5-dibromo-indole-2-carboxylic acid | 98591-49-2 | C9H5Br2NO2 | 318.952 |
5-吡啶-3-基-1H-吲哚-2-羧酸乙酯 | 5-pyridin-3-yl-1H-indole-2-carboxylic acid ethyl ester | 1012313-08-4 | C16H14N2O2 | 266.299 |
5-溴-3-甲酰基-1H-吲哚-2-羧酸乙酯 | ethyl 5-bromo-3-formyl-1H-indole-2-carboxylate | 100123-25-9 | C12H10BrNO3 | 296.12 |
—— | 5-(2-tert-butoxycarbonyl-vinyl)-1H-indole-2-carboxylic acid ethyl ester | 380241-08-7 | C18H21NO4 | 315.369 |
—— | ethyl 5-(4-methoxyphenyl)-1H-indole-2-carboxylate | 825623-46-9 | C18H17NO3 | 295.338 |
—— | 5-piperidin-4-yl-1H-indole-2-carboxylic acid ethyl ester | 1499020-07-3 | C16H20N2O2 | 272.347 |
5-溴-1-氰基甲基-1H-吲哚-2-羧酸乙酯 | ethyl 5-bromo-1-(cyanomethyl)indole-2-carboxylate | 201809-30-5 | C13H11BrN2O2 | 307.147 |
5-吡啶-2-基-1H-吲哚-2-羧酸乙酯 | ethyl ester of 5-(2-pyridyl)indole-2-carboxylic acid | 121217-69-4 | C16H14N2O2 | 266.299 |
—— | 5-(4-(trifluoromethyl)phenyl)indole-2-carboxylic acid ethyl ester | 871927-70-7 | C18H14F3NO2 | 333.31 |
—— | 5-piperidin-3-yl-1H-indole-2-carboxylic acid ethyl ester | 1520600-17-2 | C16H20N2O2 | 272.347 |
—— | 5-(1-isopropyl-piperidin-4-yl)-1H-indole-2-carboxylic acid ethyl ester | 1603833-74-4 | C19H26N2O2 | 314.428 |
—— | ethyl 5-bromo-1-[2-(trimethylsilyl)ethoxymethyl]-1H-indole-2-carboxylate | 1349698-73-2 | C17H24BrNO3Si | 398.372 |
—— | ethyl 1-benzyl-5-bromo-1H-indole-2-carboxylate | 198277-56-4 | C18H16BrNO2 | 358.235 |
—— | ethyl 5-bromo-1-(4-methylbenzyl)-1H-indole-2-carboxylate | 481630-92-6 | C19H18BrNO2 | 372.261 |
—— | 5-(2-methoxyphenyl)indole-2-carboxylic acid ethyl ester | 825623-58-3 | C18H17NO3 | 295.338 |
—— | 5-(1-methyl-piperidin-3-yl)-1H-indole-2-carboxylic acid ethyl ester | 1541819-23-1 | C17H22N2O2 | 286.374 |
—— | 5-(3-methylpyridin-4-yl)-1H-indole-2-carboxylic acid ethyl ester | 1349698-46-9 | C17H16N2O2 | 280.326 |
—— | 5-bromo-indole-2-carbohydrazide | 20948-71-4 | C9H8BrN3O | 254.086 |
—— | 5-bromo-1-(4-methoxy-benzyl)-1H-indole-2-carboxylic acid ethyl ester | 1603833-92-6 | C19H18BrNO3 | 388.261 |
—— | 5-(1-isopropyl-piperidin-3-yl)-1H-indole-2-carboxylic acid ethyl ester | 1603833-75-5 | C19H26N2O2 | 314.428 |
—— | ethyl 5-bromo-1-[(3-fluorophenyl)methyl]-1H-indole-2-carboxylate | 1186429-45-7 | C18H15BrFNO2 | 376.225 |
2-乙氧基羰基吲哚-5-硼酸频那醇酯 | ethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-2-carboxylate | 736990-02-6 | C17H22BNO4 | 315.177 |
—— | 5-bromo-1-methyl-1H-indole-2-carbaldehyde | 1287693-76-8 | C10H8BrNO | 238.084 |
—— | ethyl 5-bromo-1-(3-chlorophenyl)-1H-indole-2-carboxylate | 1186429-51-5 | C17H13BrClNO2 | 378.653 |
—— | ethyl 5-bromo-1-(2-4-(trifluoromethoxy)phenoxylethyl)-1H-indole-2-carboxylate | 1418287-67-8 | C20H17BrF3NO4 | 472.258 |
—— | Ethyl 5-(1-Methyl-1h-Imidazol-5-Yl)-1h-Indole-2-Carboxylate | 1349698-48-1 | C15H15N3O2 | 269.303 |
—— | ethyl 5-[1-(tert-butoxycarbonyl)piperidin-4-yl]-1H-indole-2-carboxylate | 1603833-77-7 | C21H28N2O4 | 372.464 |
—— | 8-bromo-3,4-dihydro-1H-[1,4]oxazino[4,3-a]indole | 1272970-88-3 | C11H10BrNO | 252.11 |
—— | ethyl 5-bromo-3-(3,5-dimethylphenylthio)-1H-indole-2-carboxylate | 540740-61-2 | C19H18BrNO2S | 404.327 |
—— | 1-(tert-butyl) 2-ethyl 5-bromo-1H-indole-1,2-dicarboxylate | 937602-51-2 | C16H18BrNO4 | 368.227 |
—— | 5-[1-(2-oxo-pyrrolidin-1-yl)-ethyl]-1H-indole-2-carboxylic acid ethyl ester | 1603833-97-1 | C17H20N2O3 | 300.357 |
—— | ethyl 5-bromo-3-nitro-1H-indole-2-carboxylate | 871927-74-1 | C11H9BrN2O4 | 313.107 |
—— | 3-bromo-5-(4-isopropoxyphenyl)indole-2-carboxylic acid ethyl ester | 825624-93-9 | C20H20BrNO3 | 402.288 |
—— | 5-bromo-3-chloro-1H-indole-2-carbaldehyde | —— | C9H5BrClNO | 258.502 |
—— | 5-[1-(2-oxo-pyrrolidin-1-yl)-vinyl]-1H-indole-2-carboxylic acid ethyl ester | 1603833-96-0 | C17H18N2O3 | 298.342 |
—— | 5-bromo-2-ethoxymethyl-1-(2-(trimethylsilanyl)ethoxymethyl)-1H-indole | 1349698-75-4 | C17H26BrNO2Si | 384.388 |
—— | 5-[1-(2-oxo-piperidin-1-yl)-vinyl]-1H-indole-2-carboxylic acid ethyl ester | 1603833-98-2 | C18H20N2O3 | 312.368 |
—— | 4-(2-ethoxycarbonyl-1H-indol-5-yl)-5-methylpyridine-2-carboxylic acid | 1349698-72-1 | C18H16N2O4 | 324.336 |
—— | 5-Brom-2-(2-amino-ethyl)-indol | 53590-51-5 | C10H11BrN2 | 239.115 |
—— | 5-(1-methanesulfonyl-piperidin-3-yl)-1H-indole-2-carboxylic acid ethyl ester | 1603833-83-5 | C17H22N2O4S | 350.439 |
—— | ethyl 5-chloro-1-(3-cyanopropyl)-1H-indole-2-carboxylate | 1513681-57-6 | C15H15ClN2O2 | 290.749 |
—— | 5-[(E)-2-((1S,4R)-3-oxo-2-aza-bicyclo[2.2.1]hept-2-yl)-vinyl]-1H-indole-2-carboxylic acid ethyl ester | 1603834-12-3 | C19H20N2O3 | 324.379 |
—— | ethyl 5-chloro-1-(3-(methylsulfonyl)propyl)-1H-indole-2-carboxylate | —— | C15H18ClNO4S | 343.831 |
—— | [5-bromo-1-(2-(trimethylsilanyl)ethoxymethyl)-1H-indol-2-yl]methanol | 1349698-74-3 | C15H22BrNO2Si | 356.335 |
—— | ethyl 5-[1-(tert-butoxycarbonyl)-1H-pyrazol-4-yl]-1H-indole-2-carboxylate | 1418287-65-6 | C19H21N3O4 | 355.393 |
—— | 5-(1-tert-butoxycarbonyl-piperidin-4-yl)-1H-indole-2-carboxylic acid | 1603833-78-8 | C19H24N2O4 | 344.411 |