Anion-π Catalysis of Diels-Alder Reactions

Beyond uncertainty: Tied up onto chiral π surfaces in solution, stereoselective proton-deuterium exchange is directly followed by 1 H NMR spectroscopy to see malonate

However, with this evidence for the stabilization of anions in the ground state, there was no reason to believe that anion −π interactions could not stabilize anionic transition

Activation and deactivation of the fullerene- centered triads by intercalators and computational data on anion binding further indicate that for functional relevance, intrinsic

The most important ndings are anion–p cinchona fusion catalysts that clearly exceed the performance of conventional metal-free organocatalysts for the rst time, the rst example

Moreo- ver, according to our earlier findings using NDI catalysts of vary- ing π-acidity, 8 the selective acceleration of enolate addition was consistent with enhanced

Dependent on their positioning, the resulting stabilization of anionic transition states on fullerenes is shown to accelerate disfavored enolate addition and exo

Catalytic activity was determined under routine conditions (Figures S1-S3). [9] From initial velocities of product formation, changes in activation energy ∆ E a

Anion–π interactions have been introduced to catalysis only recently, and evidence for their significance is so far limited to one classical model reaction in