Low temperature NMR spectra show that the title compound exist as a pair of conformational enantiomers, generated by the restricted rotation about the C9-Pri bond, the corresponding interconversion barrier being 6.9 kcal mol-1. This interpretation is supported by theoretical (MM and DFT) calculations and by the experimental determination of the analogous barriers occurring in the related MeC=O and ButC=O derivatives.

Stereomutation of Conformational Enantiomers of 9-Isopropyl-9-formyl fluorene and Related Acyl Derivatives

LUNAZZI, LODOVICO;MAZZANTI, ANDREA
2008

Abstract

Low temperature NMR spectra show that the title compound exist as a pair of conformational enantiomers, generated by the restricted rotation about the C9-Pri bond, the corresponding interconversion barrier being 6.9 kcal mol-1. This interpretation is supported by theoretical (MM and DFT) calculations and by the experimental determination of the analogous barriers occurring in the related MeC=O and ButC=O derivatives.
D. Casarini; L. Lunazzi; A. Mazzanti
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/68809
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