13153-11-2Relevant articles and documents
Oxygen-17 Nuclear Magnetic Resonance Spectroscopy of Sulfoxides and Sulfones. Alkyl Substituent Induced Chemical Shift Effects.
Dyer, John C.,Harris, David L.,Evans, Slayton A.
, p. 3660 - 3664 (1982)
Oxygen-17 NMR chemical shifts have been determined for a number of cyclic and acyclic as well as aliphatic, olefinic, and aryl sulfoxides and sulfones.The (17)O NMR chemical shifts for the acyclic, aliphatic, and aromatic sulfoxides reported here absorb in the narrow range between δ -20 and +20, while the cyclic, aliphatic sulfoxides absorb between δ -13 and +66 relative to external (but naturally abundant) H2(17)O.The sulfonyl oxygens are deshielded relative to sulfinyl oxygens, exhibiting chemical shifts for acyclic and cyclic sulfonyl oxygens between δ 120 and 183 for the sulfones reported here.Diastereotopic sulfonyl oxygens exhibit chemical shift nonequivalence.Substituent-induced chemical shift effects by a methyl or methylene group on the sulfinyl and sulfonyl oxygens are discussed.
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Tamres,Searles
, p. 2100 (1959)
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Straightforward access to 4-membered sulfurated heterocycles: Introducing a strategy for the single and double functionalization of thietane 1-oxide
Carroccia, Laura,Degennaro, Leonardo,Romanazzi, Giuseppe,Cuocci, Corrado,Pisano, Luisa,Luisi, Renzo
, p. 2180 - 2184 (2014)
A strategy for the stereoselective functionalization of thietane 1-oxide has been developed. Mono (C2 substituted) and doubly (C2, C4 disubstituted) functionalized thietanes have been obtained from the readily available thietane 1-oxide by using the corre
Reaction of singlet oxygen with thietane. A novel example of a self-catalyzed reaction which provides evidence for a thiadioxirane intermediate
Clennan, Edward L.,Dobrowolski, Piotr,Greer, Alexander
, p. 9800 - 9803 (1995)
Singlet oxygen reacts with thietane, 1, to give the sulfoxide, 1SO, and a trace of sulfone, 1SO2. A mechanism which involves a novel substrate catalyzed interconversion of a persulfoxide and thiadioxirane intermediate is proposed. The data whic
Observed and calculated 1Hand 13C chemical shifts induced by the in situ oxidation ofmodel sulfides to sulfoxides and sulfones
Dracinsky, Martin,Pohl, Radek,Slavetinska, Lenka,Budesinsky, Milos
experimental part, p. 718 - 726 (2011/05/15)
A series of model sulfides was oxidized in the NMR sample tube to sulfoxides and sulfones by the stepwise addition of meta-chloroperbenzoic acid in deuterochloroform. Various methods of quantum chemical calculations have been tested to reproduce the observed 1H and 13C chemical shifts of the starting sulfides and their oxidation products. It has been shown that the determination of the energy-minimized conformation is a very important condition for obtaining realistic data in the subsequent calculation of the NMR chemical shifts. The correlation between calculated and observed chemical shifts is very good for carbon atoms (even for the 'cheap' DFT B3LYP/6-31G* method) and somewhat less satisfactory for hydrogen atoms. The calculated chemical shifts induced by oxidation (the δd values) agree even better with the experimental values and can also be used to determine the oxidation state of the sulfur atom (-S-, -SO-, -SO2 -). Copyright
Synthesis of 2-alkyl(aryl)thietanes
Volynskii,Shevchenko
, p. 109 - 117 (2008/02/03)
Thietane and its 2-substituted derivatives were synthesized. A general preparation procedure for the synthesis of thietanes bearing alkyl and aryl substituents in the α-position was developed. Using this procedure, 2-substituted thietanes can be obtained from cheap and easily accessible raw materials in three steps. 2-R-Thietanes (where R = H, CH3, C 4H9, C5H11, C6H 13, C6H5) and the corresponding sulfoxides and sulfones were synthesized and examined. Intermediate and by-products of the synthesis were studied. Nauka/Interperiodica 2007.