Tetrahedron

The preparation and spectral studies of a series of cyclic β-ketoesters

SJ Rhoads, JC Gilbert, AW Decora, TR Garland…

文献索引：Rhoads,S.J. et al. Tetrahedron, 1963 , vol. 19, p. 1625 - 1644

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被引用次数: 43

摘要

2-Carbethoxycyclanones of ring size 5–12 and 15 and their C-methyl derivatives have been prepared and studied in the UV and IR spectral regions. The enolizable β-ketoesters show a high intensity K band in the 255–263 mμ region associated with the chelated enolic species and two pairs of bands in the 6 μ double bond stretching region which correspond to the structural features of the keto and enol tautomers. The non-enolizable β-ketoesters show ...