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|Type:||Artigo de periódico|
|Title:||Axial/equatorial Proportions For 2-substituted Cyclohexanones|
|Abstract:||Axial-equatorial conformational proportions have been measured for 2-substituted cyclohexanones in chloroform by the Eliel method for F, Cl, Br, I, MeO, MeS, Me2N, MeSe, and Me. For the first seven of these, at least five experimentally independent measurables were used and the resulting conformational preferences appear to be accurate to within 10%. Systematic errors degraded the results for MeSe and Me. For Me2N, the conformational preference also was measured for the first time at slow exchange in the low-temperature 13C spectrum in several solvents. In chloroform, steric and polar effects contribute to the conformational preferences, with steric effects dominant for large groups such as I and MeS. © 1993 American Chemical Society.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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