Benzannulation of Axial Chiral Biscarbene Complexes of Chromium: An Approach to NovelC2-Symmetrical Redox-Active Bi(phenanthrenequinones)

Abstract

The axial and planar chiral biphenanthrene complexes 1 are synthesized by benzannulation reactions and have been studied by CD spectroscopy. Oxidation of 1 affords the diquinone 2, which has been characterized by cyclic voltammetry.