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IJC-B Vol.48B(04) [April 2009] >


Title: Conformational analysis of some N-hydroxypiperidin-4-one oximes
Authors: Baskar, G
Gopalakrishnan, M
Jabaraj, J Winfred
Keywords: 1H NMR
13C NMR
NOESY
conformation and N-hydroxypiperidone oximes
Issue Date: Apr-2009
Publisher: CSIR
Abstract: Analysis of the spectral data (1H NMR and13C NMR) indicates that out of ten N-hydroxypiperidin-4-one oximes 3a-j, the compounds 3b and 3c exist predominantly in chair conformation with the aryl and alkyl substituents in the equatorial positions, whereas the compounds 3d-j exist in boat conformation. The introduction of an oxime group at C-4 causes a flattening of the ring about C(5)-C(6) bond. The NOESY spectrum (Nuclear Overhauser effect) recorded for the compound 3d further supports the assigned boat conformation.
Page(s): 580-584
ISSN: 0376-4699
Source:IJC-B Vol.48B(04) [April 2009]

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