Abstract
A recyclable organocatalyst bearing O -trimethylsilyl-α,α-diphenyl-( S )-prolinol unit tagged to the imidazolium cation and poly(4-styrenesulfonate) anion in the reaction of CH-acids with α,β-enals provided the respective Michael adducts in high yields (up to 99%) and with high enantioselectivities (up to 98% ee ).
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