Synthesis and Structural Elucidation of Diversely Functionalized 5,10-Diaza[5]Helicenes
作者:Deepali Waghray、Jing Zhang、Jeroen Jacobs、Wienand Nulens、Nikola Basarić、Luc Van Meervelt、Wim Dehaen
DOI:10.1021/jo301814m
日期:2012.11.16
building block via Wittig reaction followed by photochemical electrocyclization. The helicene skeleton was substituted by a variety of O-, S-, N-, and C-centered nucleophiles using nucleophilic aromatic substitution reactions and palladium-catalyzed reactions like Suzuki coupling and Buchwald–Hartwig aminations. We have determined, using X-ray single-crystal diffraction, the crystal structures of the chloro-