Hong Hyejin, Conover Cassidy M, Hofsommer Dillon T, Sanz Corey A, Hicks Robin G
Department of Chemistry, University of Victoria, PO Box 3065 STN CSC, Victoria BC V8W 3V6, Canada.
Org Biomol Chem. 2020 Aug 5;18(30):5838-5842. doi: 10.1039/d0ob01368d.
Reactions of indigo with quinones in the presence of sodium hydride leads unexpectedly to products containing two indigo subunits; one indigo is featured in a cis configuration and fused via its indole nitrogen atoms to a second indigo at the central C-C bond of the latter. Structural, optical, and redox properties of the new compounds are reported.