Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/32808
metadata.artigo.dc.title: The mutual effect of a carbonyl polar bond and an endocyclic oxygen on the 1JC‐F coupling constant of fluorinated six‐membered rings
metadata.artigo.dc.creator: Silla, Josué M.
Freitas, Matheus P.
metadata.artigo.dc.subject: 1JC‐F constant coupling
Dipole moment
Intramolecular interactions
Theoretical calculations
Acoplamento constante de 1JC-F
Momento dipolo
Interações intramoleculares
Cálculos teóricos
metadata.artigo.dc.publisher: Wiley
metadata.artigo.dc.date.issued: Dec-2017
metadata.artigo.dc.identifier.citation: SILLA, J. M; FREITAS, M. P. The mutual effect of a carbonyl polar bond and an endocyclic oxygen on the 1JC‐F coupling constant of fluorinated six‐membered rings. Magnetic Resonance in Chemistry, Chichester, v. 55, n. 12, p. 1079-1083, Dec. 2017.
metadata.artigo.dc.description.abstract: The 1JC‐F coupling constant can be useful to probe the conformational landscape of organofluorine compounds and the intramolecular interactions governing the stereochemistry of these compounds. Neighboring oxygen electron lone pairs and a carbonyl group relative to a C─F bond affect this coupling constant in an opposite way, and therefore, analysis of the interactions involving these entities simultaneously indicates which effect dominates 1JC‐F. Spin–spin coupling constant calculations for a series of fluorinated tetrahydropyrans, cyclohexanones, and dihydropyran‐3‐ones indicated that an electrostatic/dipolar interaction between the C─F and C═O bonds is more important than the steric interaction between the C─F bond and the oxygen electron lone pairs. An intuitive consequence of such outcome is that this interaction not only drives the coupling constant but can also be taken into account when aiming at the stereochemical control of functionalized organofluorine compounds.
metadata.artigo.dc.identifier.uri: https://onlinelibrary.wiley.com/doi/full/10.1002/mrc.4632
http://repositorio.ufla.br/jspui/handle/1/32808
metadata.artigo.dc.language: en_US
Appears in Collections:DQI - Artigos publicados em periódicos

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