2-trifluoromethylchromones in one step, in high yields and avoiding the use of solvents. We were able to detect the intermediate of this reaction. Furthermore a mechanism for the formation of the 7-methoxy-3-trifluoroacetyl-2-trifluoromethylchromone through the unexpected double trifluoroacetylation of 4-methoxy-2-hydroxyacetophenone followed by dehydration is also proposed. All compounds are fully identified
我们报告了一种简单而合适的方法,该方法一步一步即可制备有用的2-三
氟甲基
色酮,且收率很高,并且避免使用溶剂。我们能够检测到该反应的中间体。此外,还提出了通过4-甲氧基-
2-羟基苯乙酮的意想不到的双三
氟乙酰化然后脱
水而形成7-甲氧基-3-三
氟乙酰基-2-三
氟甲基
色酮的机理。所有化合物均已通过光谱技术进行了全面鉴定和表征。