The barrier for the interconversion of the conformational atropisomers of an aryl fluorenylidene derivative was determined by variable temperature NMR technique. In the case of a more hindered compound the two atropisomers were isolated and the structure determined by X-ray diffraction. The absolute configuration was assigned by theoretical interpretation of the Electronic Circular Dichroism spectrum (ECD).
L. Lunazzi, M. Mancinelli, A. Mazzanti (2011). Structure, Conformation, Stereodynamics and Absolute Configuration of the Atropisomers of Fluorenylidene Derivatives. JOURNAL OF ORGANIC CHEMISTRY, 76, 1487-1489 [10.1021/jo1023427].
Structure, Conformation, Stereodynamics and Absolute Configuration of the Atropisomers of Fluorenylidene Derivatives
LUNAZZI, LODOVICO;MANCINELLI, MICHELE;MAZZANTI, ANDREA
2011
Abstract
The barrier for the interconversion of the conformational atropisomers of an aryl fluorenylidene derivative was determined by variable temperature NMR technique. In the case of a more hindered compound the two atropisomers were isolated and the structure determined by X-ray diffraction. The absolute configuration was assigned by theoretical interpretation of the Electronic Circular Dichroism spectrum (ECD).File in questo prodotto:
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