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 electronrichalkenes 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