Negative substituents in the claisen rearrangement
作者： C.G. Krespan
DOI: 10.1016/S0040-4020(01)88821-9
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摘要: Abstract Several instances of the Claisen rearrangement are demonstrated with allyl vinyl ethers in which segment is heavily substituted negative groups. With fluoro, fluoroalkyl, chloro and alkoxy as substituents, these reactions proceed unusual ease at 25–100°. A related isomerization a propargyl ether to an allenyl ketone also described.
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