| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 2-(4-methoxyphenyl)-1,4-dihydro-4-oxoquinoline | 3813-92-1 | C16H13NO2 | 251.285 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 3-iodo-2-(4'-methoxyphenyl)-1-methylquinolin-4(1H)-one | 876460-09-2 | C17H14INO2 | 391.208 |
| 2-(4-甲氧基苯基)-1-甲基喹啉-4-酮 | 1-methyl-2-(4’-methoxyphenyl)-1H-4-quinolone | 246181-55-5 | C17H15NO2 | 265.312 |
| —— | N-(2-(4-methoxyphenyl)-1-methyl-4-oxo-1,4-dihydroquinolin-3-yl)acetamide | 1309362-54-6 | C19H18N2O3 | 322.364 |
An unprecedented visible light mediated regioselective C-3 halogenation of quinolones was achieved using halo-fluorescein dyes as a halogen source and air as an oxidant. This reaction has broad substrate scope and gives 3-halo quinolone derivatives.
Sequential functionalisation of 2-aryl-4-chloro-3-iodoquinolines via palladium–catalysed cross-coupling with phenylboronic acid followed by displacement of the 4-chloro atom from the resulting 2,3-diaryl-4-chloroquinolines with methoxide ion yielded 2,3-diaryl-4-methoxyquinolines. The latter were also prepared via Suzuki–Miyaura cross-coupling of 2-aryl-3-iodo-4-methoxyquinolines with phenylboronic acid. Demethylation of the methoxy compounds (BBr3) gave the 2,3-diaryl-4(1 H)-quinolinones.