| dc.creator | Ribeiro, DS | |
| dc.creator | Olivato, PR | |
| dc.creator | Rittner, R | |
| dc.date | 2000 | |
| dc.date | AUG | |
| dc.date | 2014-12-02T16:27:18Z | |
| dc.date | 2015-11-26T17:28:58Z | |
| dc.date | 2014-12-02T16:27:18Z | |
| dc.date | 2015-11-26T17:28:58Z | |
| dc.date.accessioned | 2018-03-29T00:16:02Z | |
| dc.date.available | 2018-03-29T00:16:02Z | |
| dc.identifier | Magnetic Resonance In Chemistry. John Wiley & Sons Ltd, v. 38, n. 8, n. 627, n. 638, 2000. | |
| dc.identifier | 0749-1581 | |
| dc.identifier | WOS:000088512100002 | |
| dc.identifier | 10.1002/1097-458X(200008)38:8<627 | |
| dc.identifier | http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/55255 | |
| dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/55255 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/55255 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1285177 | |
| dc.description | 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, OCH3, N(CH3)(2), SCH3]. A novel approach is presented, which uses H-1 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 series, all substituents adopt preferentially the axial conformation (86-96%), but the O-methyl oxime ethers present an enhanced axial population compared with the corresponding oximes, owing to the accepted occurrence of a pi(C=NOH)/sigma(CX)* stabilizing interaction. Copyright (C) 2000 John Wiley & Sons, Ltd. | |
| dc.description | 38 | |
| dc.description | 8 | |
| dc.description | 627 | |
| dc.description | 638 | |
| dc.language | en | |
| dc.publisher | John Wiley & Sons Ltd | |
| dc.publisher | W Sussex | |
| dc.publisher | Inglaterra | |
| dc.relation | Magnetic Resonance In Chemistry | |
| dc.relation | Magn. Reson. Chem. | |
| dc.rights | fechado | |
| dc.rights | http://olabout.wiley.com/WileyCDA/Section/id-406071.html | |
| dc.source | Web of Science | |
| dc.subject | NMR | |
| dc.subject | H-1 NMR | |
| dc.subject | C-13 NMR | |
| dc.subject | oximes | |
| dc.subject | O-methyl oximes | |
| dc.subject | conformational analysis | |
| dc.subject | 2-substituted Cyclohexanones | |
| dc.subject | Acetone Oximes | |
| dc.subject | Ketones | |
| dc.title | Axial/equatorial populations in alpha-hetero-substituted cyclohexanone oximes and O-methyl oximes | |
| dc.type | Artículos de revistas | |
