Abstract
AbstractHighly substituted 2‐cyclopentenones were stereospecifically and regioselectively constructed with high catalytic efficiency through Lewis‐acid catalyzed decarboxylative Nazarov cyclization of the cyclic carbonate derivative, which is prepared by reacting the propargyl alcohol with carbon dioxide in the presence of a silver catalyst. The stereochemistry of the 2‐cyclopentenone is strictly controlled by the geometry of the alkene in the starting material. This method is applicable for various substrates.
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