6-溴-4-氯-3-喹啉羧酸乙酯可用作医药合成中间体。
制备6-溴-4-氯-3-喹啉羧酸乙酯可由6-溴-1-[(4-甲氧基苯基)甲基]-4-氧代喹啉-3-甲酸乙酯为反应原料,在亚硫酰氯的作用下关环制备而得。
在环境温度下,将DMF(0.119 mL,1.54 mmol)加入到含有6-溴-1-[(4-甲氧基苯基)甲基]-4-氧代喹啉-3-甲酸乙酯(160 g,384.37 mmol)的亚硫酰氯(800 mL)中。将所得混合物在75℃下搅拌16小时,然后减压除去溶剂。将所得混合物与甲苯共沸两次,随后加入正己烷(500 mL)。通过过滤收集沉淀,并用正己烷(200 mL)洗涤,在真空下干燥,最终得到呈棕色固体的所希望物质(100 g,83%)。
NMR谱: 1HNMR (400 MHz, CDCl₃) δ 1.47 (3H, t), 4.51 (2H, q), 7.95 (1H, dd), 8.11 (1H, d), 8.60 (1H, d), 9.24 (1H, s)。
质谱: m/z(ES⁺)[M+H]+ = 314,316。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6-溴-4-羟基-3-喹啉羧酸乙酯 | ethyl 6-bromo-4-hydroxyquinoline-3-carboxylate | 122794-99-4 | C12H10BrNO3 | 296.12 |
—— | ethyl 6-bromo-1-[(4-methoxyphenyl)methyl]-4-oxoquinoline-3-carboxylate | —— | C20H18BrNO4 | 416.271 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 4-chloro-6-ethenyl-3-quinolinecarboxylate | 916812-34-5 | C14H12ClNO2 | 261.708 |
6-溴-4-氯喹啉-3-甲醛 | 6-bromo-4-chloroquinoline-3-carbaldehyde | 201420-31-7 | C10H5BrClNO | 270.513 |
—— | methyl 6-bromo-4-methoxyquinoline-3-carboxylate | 1841096-87-4 | C12H10BrNO3 | 296.12 |
—— | ethyl 6-bromo-4-(4-chlorophenylamino)-quinoline-3-carboxylate | 449197-16-4 | C18H14BrClN2O2 | 405.678 |
—— | ethyl 6-bromo-4-(phenylamino)quinoline-3-carboxylate | 449196-93-4 | C18H15BrN2O2 | 371.233 |
—— | 6-bromo-4-p-tolyl-amino-quinoline-3-carboxylic acid ethyl ester | 449196-96-7 | C19H17BrN2O2 | 385.26 |
—— | ethyl 6-bromo-4-(4-fluorophenylamino)-quinoline-3-carboxylate | 449197-18-6 | C18H14BrFN2O2 | 389.224 |
—— | Ethyl 6-bromo-4-(3-chloro-4-fluoroanilino)quinoline-3-carboxylate | 1266689-68-2 | C18H13BrClFN2O2 | 423.669 |
—— | ethyl 6-bromo-4-(3-morpholinopropylamino)quinoline-3-carboxylate | —— | C19H24BrN3O3 | 422.322 |
—— | 6-bromo-4-(4-methoxyphenylamino)-quinoline-3-carboxylic acid ethyl ester | 449197-37-9 | C19H17BrN2O3 | 401.26 |
—— | Ethyl 6-bromo-4-(3,4-difluoroanilino)quinoline-3-carboxylate | 1266689-69-3 | C18H13BrF2N2O2 | 407.214 |
—— | ethyl 6-bromo-4-((3-(trifluoromethyl)phenyl)amino)quinoline-3-carboxylate | 449197-54-0 | C19H14BrF3N2O2 | 439.232 |
—— | ethyl 4-((3-(1H-imidazol-1-yl)propyl)amino)-6-bromoquinoline-3-carboxylate | 1356941-10-0 | C18H19BrN4O2 | 403.278 |
—— | ethyl 6-bromo-4-(4-morpholinyl)-3-quinolinecarboxylate | 916812-69-6 | C16H17BrN2O3 | 365.227 |
—— | Ethyl 6-bromo-4-[4-fluoro-2-(trifluoromethyl)anilino]quinoline-3-carboxylate | 1266689-72-8 | C19H13BrF4N2O2 | 457.222 |