Scheme 7.
a) Isolation of dearomatized diene 3 j. b) Formal [2+2] cycloaddition in the acid‐induced spirocyclization of 2 p. c) One‐pot interrupted Friedel–Crafts/Diels–Alder dearomatization reaction.
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.