Unusual behaviour of<i>N</i>-cinnamoyl-2-hydroxy-2-(trifluoromethyl)-arylethylamines in pictet-gams cyclization. Synthesis of 2-styryl-5-aryl-5-trifluoromethyl-2-oxazolines
作者:LÁSzlÓ Poszávácz、Gyula Simig
DOI:10.1002/jhet.5570370219
日期:2000.3
Cyclization of N-acyl-2-hydroxy-2-(trifluoromethyl)arylethylamines 4 under Pictet-Gams conditions afforded 2-oxazolines 5 instead of the expected isoquinolines 6. The effect of the trifluoromethyl group on the result of the reaction is discussed.