Organometal-Free Arylation and Arylation/Trifluoroacetylation of Quinolines by Their Reaction with CF<sub>3</sub>-ynones and Base-Induced Rearrangement
作者:Vasiliy M. Muzalevskiy、Kseniya V. Belyaeva、Boris A. Trofimov、Valentine G. Nenajdenko
DOI:10.1021/acs.joc.0c01277
日期:2020.8.7
The reaction of quinolines with CF3-ynones resulted in the formation of 1,3-oxazinoquinolines. Subsequent treatment of the reaction mixture with a base initiated deep structural transformation of primary products. Both steps proceed in very high yield. As a result, unusual rearrangement of 1,3-oxazinoquinolines to form either 2-arylquinolines or 2-aryl-3-trifluoroacetylquinolines was discovered. The
喹啉与CF 3-炔酮的反应导致形成1,3-恶嗪基喹啉。用碱对反应混合物的后续处理引发了初级产物的深度结构转化。这两个步骤都以很高的产率进行。结果,发现了1,3-恶嗪基喹啉的异常重排以形成2-芳基喹啉或2-芳基-3-三氟乙酰基喹啉。显示了碱在反应方向上的决定性作用。使用这些反应,通过简单的一锅法,精心设计了通往2-芳基喹啉和2-芳基-3-三氟乙酰基喹啉的高效途径,以高收率提供了相应的化合物。讨论了可能的重排机制。