This paper discloses a new class of chiral catalysts that initiate olefin metathesis with exceptional efficiency and enantioselectivity. These new catalysts bear a stereogenic metal centre and carry only monodentate ligands; the molybdenum-based complexes are rendered non-racemic by a stereoselective ligand exchange process involving an enantiomerically pure aryloxide, a class of ligands rarely used in asymmetric catalysis.
- Steven J. Malcolmson
- Simon J. Meek
- Amir H. Hoveyda
