C. Cistaro, G. Fronza, R. Mondelli
Aug 1, 1974
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Influential Citations
14
Citations
Journal
Journal of Magnetic Resonance
Abstract
Abstract The proton spectra of thietane-1-oxide and thietane-1,l-dioxide have been analyzed at 300 and 100 MHz. The measurements in the range of temperatures between −140 and +190°C indicate for thietane-l-oxide a preferred puckered structure, with the sulphinyl oxygen in the equatorial orientation. The NMR data of thietane-1,1-dioxide are in agreement with either a planar structure or with two rapid interconverting equivalent conformers. The geminal, vicinal, and four-bond couplings of thietane-l-oxide and -1,1-dioxide together with those of other unsubstituted heterocycles are discussed in the light of recent theoretical predictions.