| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 1-(吡啶-3-基)戊-1-醇 | 1-(pyridin-3-yl)pentan-1-ol | 18085-86-4 | C10H15NO | 165.235 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 3-戊基吡啶 | 3-pentyl-pyridine | 1802-20-6 | C10H15N | 149.236 |
| —— | 5-methyl-5,6,7,8-tetrahydroisoquinolin-8-one | 78072-42-1 | C10H11NO | 161.203 |
A method for the HMPA (hexamethylphosphoric triamide)-catalyzed metal-free transfer hydrogenation of pyridines has been developed. The functional group tolerance of the existing reaction conditions provides easy access to various piperidines with ester or ketone groups at the C-3 site. The suitability of this method for the reduction of other N-heteroarenes has also been demonstrated. Thirty-three examples of different substrates have been reduced to designed products with 45–96% yields.