Enantioselective Reactions of 2‐Sulfonylalkyl Phenols with Allenic Esters: Dynamic Kinetic Resolution and [4 2] Cycloaddition Involving ortho‐Quinone Methide Intermediates

Enantioselective Reactions of 2‐Sulfonylalkyl Phenols with Allenic Esters: Dynamic Kinetic Resolution and [4 2] Cycloaddition Involving ortho‐Quinone Methide Intermediates: We report herein a dynamic kinetic resolution (DKR) involving ortho‐quinone methide (o‐QM) intermediates. In the presence of Et3N and the cinchonine‐derived nucleophilic catalyst D, the DKR of 2‐sulfonylalkyl...

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