作者:Wolfgang Marterer、Walter Prikoszovich、Jacques Wiss、Mahavir Prashad
DOI:10.1021/op0340255
日期:2003.5.1
8-Methylquinoxalines are nitrated surprisingly efficiently at C-5 following a simple nitration protocol with mixed acid at 40−50 °C. The implications of halogen functionalisation at C-6 and modification of the mixed acid conditions on the relative rates of conversion and process safety are discussed. Competing side reactions for 6-halo-8-methylquinoxalines involve hydrolysis at C-6 and halogenation
8-甲基喹喔啉在 40-50 °C 下通过简单的混合酸硝化方案在 C-5 处被有效地硝化。讨论了 C-6 卤素官能化和混合酸条件的修改对相对转化率和工艺安全性的影响。6-卤代-8-甲基喹喔啉的竞争副反应包括在 C-6 的水解和在 C-7 或 C-5 的卤化。