Tetrahedron

1, 5-Dicarbonyl compounds: A general preparation method

P Duhamel, L Hennequin, JM Poirier, G Tavel…

文献索引：Duhamel, P.; Hennequin, L.; Poirier, J. M.; Tavel, G.; Vottero, C. Tetrahedron, 1986 , vol. 42, # 17 p. 4777 - 4786

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被引用次数: 53

摘要

In this report, a general method for the preparation of 1, 5-dicarbonyl compounds and six membered ring annelation is described. This method involves the reaction of hemiacetal vinylogs 1 with enol ethers 2 or 3 in the presence of a Lewis acid. This reaction was successfully applied to the enol ethers of α and α, α'-hindered ketones such as 2, 2, 6- trimethyl cyclohexanone. α-Cyperone and 6-epi-α-cyperone were obtained using this ...

~66%

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~39%

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~50%

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~36%

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~46%

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~47%

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~45%

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~70%

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~71%

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~79%

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~19%

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~73%

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~29%

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