| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 1-[(4-甲基苯基)磺酰]-1H-吲哚-3-甲醛 | 1-(4-tolylsulfonyl)indole-3-carboxaldehyde | 50562-79-3 | C16H13NO3S | 299.35 |
A simple and straightforward method is developed for the enantioselective synthesis of indol‐3‐yl‐piperidine. The reaction proceeds through a proline‐catalyzed direct Mannich reaction between glutaraldehyde and C3‐indolyl‐imines, followed by intramolecular reductive cyclization as an overall [4+2] annulation in one‐pot fashion. A series of indol‐3‐yl‐piperidine have been accessed with good yields up to 71 % and high enantioselectivity up to >99 % ee.