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Letters in Organic Chemistry


ISSN (Print): 1570-1786
ISSN (Online): 1875-6255

Isomer Distribution of Succinylcyclohexenyl, Acetylcyclohexenyl and Acetylcyclopentenyl Enamines

Author(s): A. Gilbert Cook and Sarah L. Folk

Volume 5, Issue 4, 2008

Page: [269 - 275] Pages: 7

DOI: 10.2174/157017808784049452

Price: $65


The isomeric distributions of some cyclohexenyl enamines substituted by succinyl or acetyl groups at either the 2- or 6-positions are reported as are the isomeric distributions of similarly substituted cyclopentenyl enamines. Correlation between the 13C NMR chemical shifts in these enamines and isomer distribution is shown. Density functional molecular modeling is used to demonstrate resonance and electrostatic effects on isomeric distributions.

Keywords: Cyclopentyl Enaminoketones, NMR, steric interactions, upfield chemical shifts, resonance

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