The ring inversion barrier for thianthrene tetraoxide was determined by making use of the variable temperature 13C NMR spectra of the 2,7-diisopropyl derivative (G= 6.5 kcal mol-1). The barrier is lower than that measured for a trans thianthrenedioxide derivative (G= 9.35 kcal mol-1). These results agree well with ab initio theoretical predictions.
D. Casarini, C. Coluccini, L. Lunazzi, A. Mazzanti (2006). Ring Inversion Dynamics of Derivatives of Thianthrene Di- and Tetraoxide. JOURNAL OF ORGANIC CHEMISTRY, 71, 6248-6250 [10.1021/jo0606610].
Ring Inversion Dynamics of Derivatives of Thianthrene Di- and Tetraoxide
LUNAZZI, LODOVICO;MAZZANTI, ANDREA
2006
Abstract
The ring inversion barrier for thianthrene tetraoxide was determined by making use of the variable temperature 13C NMR spectra of the 2,7-diisopropyl derivative (G= 6.5 kcal mol-1). The barrier is lower than that measured for a trans thianthrenedioxide derivative (G= 9.35 kcal mol-1). These results agree well with ab initio theoretical predictions.File in questo prodotto:
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