An official website of the United States government
Here's how you know
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.
Side view of the dimethyl substituted transition states (TS22 and TS25) and the trimethyl substituted TS48 and TS51’. TS51’ is destabilized due to steric repulsions of the nitrate with the chelating adamantyl group and the methyl group on the olefin.