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- W2088473018 abstract "Cu-catalyzed cyclizations of (E)-O-propargylic oximes of α,β-unsaturated aldehydes were successfully carried out to afford the corresponding pyridine oxides in good to high yields. As an example, (E)-acrylaldehyde O-1,3-diphenylprop-2-ynyl oxime (1b) was reacted for 5 h in the presence of CuBr(PPh3)3 (10 mol %) and PPh3 (10 mol %) in DMSO at 120 °C to afford 3-benzyl-2-phenylpyridine-N-oxide (2b) in 84% yield. In this case, the reaction proceeded via Cu-catalyzed propargyl oxime-allenyl nitrone rearrangement followed by 6π-3-azatriene electrocyclization." @default.
- W2088473018 created "2016-06-24" @default.
- W2088473018 creator A5030446424 @default.
- W2088473018 creator A5053224322 @default.
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- W2088473018 date "2010-05-14" @default.
- W2088473018 modified "2023-10-06" @default.
- W2088473018 title "Copper-Catalyzed Tandem [2,3]-Rearrangement and 6π-3-Azatriene Electrocyclization in (<i>E</i>)<i>-O</i>-Propargylic α,β-Unsaturated Oximes" @default.
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- W2088473018 doi "https://doi.org/10.1021/ja102436z" @default.
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