Azaindenocorannulenes: Synthesis, Properties, and Chirality

Org Lett. 2019 May 17;21(10):3510-3513. doi: 10.1021/acs.orglett.9b00718. Epub 2019 Apr 17.

Abstract

Palladium-catalyzed intramolecular arylation provides bowl-shaped azaindenocorannulenes 7-9. Crystals of 8 show bowl-in-bowl columnar stacking. A substituent model rationalizes the first reduction potential of 18 related molecular bowls. The absolute configurations of bowls 7 and 9 are correlated with VCD and ECD spectra. The bowl inversion barrier of 9 (>190 kJ/mol) shows it to be more inert configurationally than chiral biaryl, phosphenes, or [ n]helicenes.

Publication types

  • Research Support, Non-U.S. Gov't