dc.creator | Ribeiro D.S. | |
dc.creator | Olivato P.R. | |
dc.creator | Rittner R. | |
dc.date | 2000 | |
dc.date | 2015-06-30T19:49:41Z | |
dc.date | 2015-11-26T14:46:52Z | |
dc.date | 2015-06-30T19:49:41Z | |
dc.date | 2015-11-26T14:46:52Z | |
dc.date.accessioned | 2018-03-28T21:56:52Z | |
dc.date.available | 2018-03-28T21:56:52Z | |
dc.identifier | | |
dc.identifier | Magnetic Resonance In Chemistry. , v. 38, n. 8, p. 627 - 638, 2000. | |
dc.identifier | 7491581 | |
dc.identifier | | |
dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-0034239438&partnerID=40&md5=0b40f947b3eb9a37f4ef79feef60b876 | |
dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/107137 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/107137 | |
dc.identifier | 2-s2.0-0034239438 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1253023 | |
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 1H 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 πC=NOH//σ*CX stabilizing interaction. Copyright © 2000 John Wiley & Sons, Ltd. | |
dc.description | 38 | |
dc.description | 8 | |
dc.description | 627 | |
dc.description | 638 | |
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dc.language | en | |
dc.publisher | | |
dc.relation | Magnetic Resonance in Chemistry | |
dc.rights | fechado | |
dc.source | Scopus | |
dc.title | Axial/equatorial Populations In α-hetero-substituted Cyclohexanone Oximes And O-methyl Oximes | |
dc.type | Artículos de revistas | |