Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Chiral pyrrolidine-catalyzed asymmetric Mannich reaction with a stereochemical model for the transition structure leading to the major product. The red dotted line represents a cation–π interaction. Black dotted lines represent breaking or forming bonds.
