The Mannich reaction has long been used by chemists for the synthesis of stereoselective synthesis of β-amino-carbonyl compounds. Here, the authors show a catalytic homo-Mannich reaction of cyclopropanols with in situ-formed imines, furnishing chiral 2,6-disubstituted piperidines in good yields with high diastereoselectivities due to the use of a diketiminate-complexed copper.
- Yankun Zhao
- Wenxuan Lin
- Min Zhang