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.
Cycloaddition of dimethyl acetylenedicarboxylate to 3,10-dimethyl- and 3,10-dihexylperylene [182]. Reagents and conditions: (a) p-chloranil, PhNO2, rfx, 2 h; R = Me (45% overall yield; 115:117 = 3:1); R = n-C6H13 (15% overall yield; 116:118 = 2:1).
