Titanium(IV)-catalyzed enantioselective sulfenylation of beta-ketoesters.

@article{Jereb2005TitaniumIVcatalyzedES,
  title={Titanium(IV)-catalyzed enantioselective sulfenylation of beta-ketoesters.},
  author={Marjan Jereb and Antonio Togni},
  journal={Organic letters},
  year={2005},
  volume={7 18},
  pages={4041-3}
}
A [Ti(TADDOLato)] complex (1) catalyzes the enantioselective sulfenylation of beta-ketoesters using phenylsulfenyl chloride, giving ees of up to 88% and yields of up to 95%. The reaction does not require the presence of a base. [reaction: see text]