Synthesis of 4-(trifluoromethyl)isoquinolines. Influence of trifluoromethyl group on the Pictet–Gams ring closure reaction
作者:László Poszávácz、Gyula Simig
DOI:10.1016/s0040-4020(01)00836-5
日期:2001.10
the synthesis of 2-oxazolines by conducting the Pictet–Gams sequence with N-acyl-2-hydroxy-2-(trifluoromethyl)arylethylamines. The operation of these two pathways is explained by the influence of the trifluoromethyl group.
在Pictet-Gams条件下处理N-酰基-2-甲氧基-2-(三氟甲基)芳基乙胺,可得到4-甲氧基-4-三氟甲基-3,4-二氢异喹啉,可通过碱催化的甲醇消除来芳香化。先前我们描述了通过用N-酰基-2-羟基-2-(三氟甲基)芳基乙胺进行Pictet-Gams序列来合成2-恶唑啉。这两个途径的操作通过三氟甲基的影响来解释。