Inhibitory Effect of Ethylene in Ene–Yne Metathesis: The Case for Ruthenacyclobutane Resting States

Reaction kinetics and mechanistic studies for ethylene–internal alkyne metathesis promoted by the phosphine-free initiator Ru1 is described

Timothy M. Gregg; Jerome B. Keister; Steven T. Diver

2013

Scholarcy highlights

  • Reaction kinetics and mechanistic studies for ethylene–internal alkyne metathesis promoted by the phosphine-free initiator Ru1 is described
  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • A ruthenacyclobutane intermediate was observed by proton NMR spectroscopy at low temperature
  • Rates were determined for a variety of internal alkynes of varying substitution
  • Several phosphine-free inhibitors were examined for their ability to promote ethylene–alkyne metathesis and to guide selection of the optimal catalyst
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