Abstract
A procedure for enantioselective organocatalytic conjugate additions of a variety of N-heterocycles to α,β-unsaturated enone systems is presented. The reactions are efficiently catalyzed by salts of 9-amino-9-deoxy-epiquinine (3d). Cyclic, acyclic, and aromatic enones can be used in reactions with 1H-benzotriazole (1a) or 5-phenyltetrazole derivatives 12, providing the Michael addition products in high yields and with good to excellent enantioselectivities.
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