Structure-dependent intermolecular hydrogen-bond effects on carbon-13 NMR chemical shifts in enol forms of 1, 3-diketones

F Imashiro, S Maeda, K Takegoshi…

文献索引：Imashiro,F.; Maeda,S.; Takegoshi,K. Journal of the American Chemical Society, 1987 , vol. 109, p. 5213

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被引用次数: 16

摘要

Abstract: We measured solid-state I3C NMR chemical shifts for the enol forms of seven 1, 3- diketones, which are intermolecularly hydrogen-bonded in the solid state: dimedone (la), 2- methyldimedone (2a), 1, 3-~ yclohexanedione (3a), 2-methyl-1, 3-cyclohexanedione (4a), 2- phenylmalondialdehyde (5a), 2-(4'-methylphenyl) malondialdehyde (6a), and 2-(4'- methoxypheny1) malondialdehyde (7a). From the" C chemical shifts of their methyl ethers ...