Synthesis of tetrahydroquinolines from aromatic amines, formaldehyde and electron rich alkenes: evidence for nonconcertedness
作者:John M. Mellor、Glynn D. Merriman、Pierre Riviere
DOI:10.1016/0040-4039(91)85052-7
日期:1991.11
The one pot synthesis of Tetrahydroquinolines can be achieved by reaction of aromatic amines and formaldehyde with a variety of electron rich alkenes including styrenes and enol ethers. The cyclisation is multi-step as evidenced by the isolation of intermediates, which can be cyclised to give the @Tetrahydroquinolines, and by the observation of side-products such as oxazines, and in the case of o-phenylenediamine
一锅合成四氢喹啉可以通过芳族胺和甲醛与各种富电子的烯烃(包括苯乙烯和烯醇醚)反应来实现。中间体的分离证明了环化过程是多步骤的,中间体可以环化生成@Tetrahydroquinolines,副产物(例如恶嗪)的观察也证明了这一点,而邻苯二胺则是有趣的三轮车(4)