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   JACOBSEN asymmetric epoxidation



chiral catalyst synthesis:


example:


remark:
  • works better with (Z) alkenes


references:

Org. Lett. 2007, 9, 3615.
J. Chem. Soc., Chem. Commun. 2005, 1152.
Org. Lett. 1999, 1, 419.
J. Org. Chem. 1997, 62, 9223.
Tetrahedron Lett. 1997, 38, 5616.