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- W2155194579 abstract "Abstract An efficient asymmetric oxidation of prochiral sulfides catalyzed by a series of simple in situ generated complexes based on chiral amino alcohol derived Schiff bases with Ti(O i -Pr) 4 was carried out in presence of cheap and environmentally benign oxidant H 2 O 2 at 0 °C. Prochiral sulfides were converted to respective chiral sulfoxides efficiently (conversion, 93%; up to ee, 98%) with this system in 10 h at 0 °C. The present study demonstrated a significant role of steric influence of the substituent attached on both aryl and alkyl moiety on the enantioselectivity. Kinetic studies of the catalytic reaction showed first order dependence on substrate and catalyst whereas it is zero for the oxidant. Kinetic studies in combination with UV–vis. spectral studies were used to propose a catalytic cycle for the sulfoxidation reaction." @default.
- W2155194579 created "2016-06-24" @default.
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- W2155194579 creator A5081504556 @default.
- W2155194579 date "2012-09-01" @default.
- W2155194579 modified "2023-09-27" @default.
- W2155194579 title "Titanium complexes of chiral amino alcohol derived Schiff bases as efficient catalysts in asymmetric oxidation of prochiral sulfides with hydrogen peroxide as an oxidant" @default.
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- W2155194579 doi "https://doi.org/10.1016/j.molcata.2012.04.014" @default.
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