865811-65-0Relevant articles and documents
ION PAIR CATALYSIS OF TUNGSTATE AND MOLYBDATE
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, (2017/10/30)
D The present invention relates to ion pair catalysts (I) comprising the cationic bisguanidinium ligand (A) and diperoxomolybdate anion (B). The present invention also relates to ion pair catalysts (III) comprising the cationic bisguanidinium ligand (C) and peroxotungstate anion (D). It further relates to the use of the said catalysts in the manufacture of enantiomerically enriched sulfoxides.
Asymmetric synthesis of modafinil and its derivatives by enantioselective oxidation of thioethers: comparison of various methods including synthesis in ionic liquids
Ternois, James,Guillen, Frederic,Plaquevent, Jean-Christophe,Coquerel, Gerard
, p. 2959 - 2964 (2008/09/16)
The oxidation of 2-(benzhydrylthio)acetic acid and its derivatives was performed with various catalytic and stoichiometric enantioselective reagents, the best results being obtained with stoichiometric chiral oxaziridine 5. The use of [bmim][PF6] as a solvent with 5 gave slightly higher yields and, in the case of the model compound thioanisole, a reversal of the enantioselectivity.