Figure 3.
Yields of the reaction shown in Figure 1 catalyzed by Eu(OTf)3 or Eu(NO3)3 after 48 h as a function of solvent composition. Conditions: solvent mixtures of 1 to 40% H2O in THF (v/v) containing 7 mol % Eu(OTf)3 (○) or Eu(NO3)3 (□).
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