Catalytic and Structural Studies of Hoveyda–Grubbs Type Pre‐Catalysts Bearing Modified Ether Ligands

Catalytic and crystallographic studies of Hoveyda–Grubbs type pre-catalysts M51TM and M52TM were performed. These two new instruments in the olefin metathesis catalyst toolbox were shown to be active at ambient temperature and at low loading, leading to clean formation of ring-closing, ring-closing enyne and cross metathesis products.