Dual Organocatalytic Ion-Pair Assemblies: A Highly Efficient Approach for the Enantioselective Oxa-Michael-Mannich Reaction of Salicylic Aldehydes with Cyclohexenones
Better in pairs: A highlyefficient asymmetric reaction of salicylicaldehydes with cyclohexenones by means of a domino oxa‐Michael–Mannich pathway has been achieved by using novel dualorganocatalytic ion‐pair assemblies from pyrrolidines and readily available primary amino acids (see scheme).