A novel synthesis of trifluoromethyl enones and enediones

[摘要]：Reactions of trifluoromethyl enamino ketones, (E)-4-(dimethylamino)-1,1,1-trifluorobut-3-en-2-one (2) and 3-(dimethylaminomethylene)-1,1,1,5,5,5-hexafluoropentane-2,4-dione (3), with various types of lithium derivatives of aromatic or heteroaromatic compounds proceed with the formation of the corresponding aryl- or hetaryl-substituted trifluoromethyl enones and enediones in good yields. The reactions of enamino ketone 2 proceed stereospecifically, only (E)-isomers of the enones being formed.

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