Convenient Synthesis of Ethyl 4-Aryl-6-(trifluoromethyl)-2-oxo-2H-pyran-3-carboxylates and 4-Aryl-6-(trifluoromethyl)-2H-pyran-2-ones: Novel Highly Reactive CF3-Containing Building Blocks
摘要:
An expedient synthesis of a series of 2-pyrones, bearing a CF3 group at the 6-position and aryl group at position 4, from readily available aryl-4,4,4-trifluorobutane-1,3-diones, PCl5, and sodium diethyl malonate is described.