Scheme 11.
Base-catalyzed oxy-Cope sequences; a retro-aldol/aldol/ oxy-Cope trio and oxy-Cope/Michael quartet. [Heathcock, 1981, Ref. [23]]
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.