Fig. 2.

N-vinylsulfonamide-based metathesis catalysts and their catalytic activities. a Electronically and sterically diversified N-vinylsulfonamide-based metathesis catalysts. b Initiation rate constant for each complex determined by adding excess butyl vinyl ether to a solution of catalyst in toluene at 10 °C. c Standard RCM kinetics using electronically modified catalysts. The averages of three independent experiments are displayed