145835-13-8Relevant articles and documents
Modulation of photochemical oxidation of thioethers to sulfoxides or sulfones using an aromatic ketone as the photocatalyst
Zhao, Bin,Hammond, Gerald B.,Xu, Bo
supporting information, (2021/09/13)
We have developed an eco-friendly and chemo-selective photocatalytic synthesis of sulfoxides or sulfones via oxidation of sulfides (thioethers) at ambient temperature using air or O2 as the oxidant. An inexpensive thioxanthone was used as the photocatalyst. Our method offers excellent chemical yields and good functional group tolerance. The hydrogen bonding between hexafluoro-2-propanol (HFIP) and sulfoxides may play an important role in minimizing the over-oxidization of sulfoxides.
Intramolecular Pauson-Khand reactions of α,β-unsaturated esters and related electron-deficient olefins
Rodriguez Rivero, Marta,Carretero, Juan Carlos
, p. 2975 - 2978 (2007/10/03)
The intramolecular Pauson-Khand (PK) reaction of a variety of electron-poor enynes having an ester, cyano, or phosphonate group at the olefin terminus is described. Depending on the reaction conditions and substitution at the enyne, their dicobalthexacarbonyl complexes led preferentially to the exocyclic 1,3-diene or to the PK cyclopentenone product. In general, the 1,3-diene was obtained as the major product under N-oxide-promoted conditions, while the PK product was selectively formed in refluxing acetonitrile.
NUCLEOPHILIC SUBSTITUTION AT SULPHUR WITH RETENTION OF CONFIGURATION IN ALKYL-p-TOLUENESULPHINAMIDES
Colonna, Stefano,Germinario, Giulio,Stirling, Charles J. M.
, p. 67 - 68 (2007/10/02)
p-Tolylsulphinylacetates are formed with prevailing retention of configuration at sulphur and with enantiomeric excess (e.e.) up to 29percent in the reaction of sulphinamides 1a, 1b with α-bromo esters 2a, 2b in the presence of BuLi.
