Scheme 4.
Reagents and conditions: a) terephthaloyl chloride (1 equiv), Et3N (4 equiv), DMAP (20 mol %), DCM, 18 h, rt, 79% (13), 48% (14), 88% (15).
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.