ChemInform Abstract: Lewis Acid‐Catalyzed [3 + 2] Cycloaddition of Donor‐Acceptor Cyclopropanes and Enamines: Enantioselective Synthesis of Nitrogen‐Functionalized Cyclopentane Derivatives.

Abstract

Reaction of the title substrates in the presence of MgI2 or Cu(O‐Tf)2 leads to an efficient preparation of various highly functionalized cyclopentanes, generally with good to excellent diastereoselectivity.