Investigations were carried out on the oxidation of sulfides to sulfoxides
catalyzed by the commercial Cp2Ti(X)(2) (X=Cl, OTf)/t-butyl hydroperoxide (
TBHP). The asymmetric version of prochiral sulfides oxidation was achieved
using Cp2TiCl2, as transition metal catalyst, in the presence of (+)-(R)-BI
NOL, as chiral ligand and activated 4 Angstrom molecular sieves (m.s.). (C)
2001 Elsevier Science B.V. All rights reserved.