Axial/equatorial populations in α??hetero??substituted cyclohexanone Oximes and O??methyl oximes

DS Ribeiro, PR Olivato, R Rittner

Index: Ribeiro, Douglas S.; Olivato, Paulo R.; Rittner, Roberto Magnetic Resonance in Chemistry, 2000 , vol. 38, # 8 p. 627 - 638

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Citation Number: 15

Abstract

Abstract Axial equatorial populations were determined for (E)-2-X-cyclohexanone oximes and O-methyl oxime ethers in chloroform by the Eliel method [X= F, Cl, Br, OCH 3, N (CH 3) 2, SCH 3]. A novel approach is presented, which uses 1 H NMR data from the protons bonded to C-6. The conformational proportions were also obtained from the C-4 chemical shifts, the Z-isomer spectral parameters being taken as reference for calculation. For both ...