Figure 1.
General structure of [2+2] photocycloaddition substrates A and of putative chiral catalysts B; structure of chiral [2+2] photocycloaddition substrate rac‐3.
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.