Abstract
AbstractA chiral squaramide has been supported onto a polystyrene (PS) resin through a copper‐catalyzed azide–alkyne cycloaddition (CuAAC) reaction and used as a very active, easily recoverable and highly reusable organocatalyst for the asymmetric Michael addition of 1,3‐dicarbonyl compounds to β‐nitrostyrenes. The PS‐supported squaramide could be recycled up to 10 times.
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