Chiral Calcium Bis-sulfonimide Catalyzed Diels-Alder Reactions of 1-Acryloyl-pyrazole

Alkaline earth metal salts of chiral bis-sulfonimide were prepared in this study. Asymmetric Diels-Alder reactions catalyzed by these metal salts were examined to evaluate the performance of bis-sulfonimide as a chiral ligand. The Diels-Alder reaction between 2-propenoyl pyrazole and cyclopentadiene catalyzed by the calcium salt afforded the cycloaddition product with moderate stereo selectivity.

Automated summary

In this study, alkaline earth metal salts of chiral bis-sulfonimide were prepared and used as catalysts for asymmetric Diels-Alder reactions. The results showed moderate stereo selectivity in the cycloaddition product formed between 2-propenoyl pyrazole and cyclopentadiene catalyzed by the calcium salt.