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ABSTRACT:
SUBMITTER: Dusold C
PROVIDER: S-EPMC7898888 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Dusold Carolin C Sharapa Dmitry I DI Hampel Frank F Hirsch Andreas A
Chemistry (Weinheim an der Bergstrasse, Germany) 20201130 7
The synthesis of an unprecedented, π-extended hexabenzocorene (HBC)-based diaza[7]helicene is presented. The target compound was synthesized by an ortho-fusion of two naphthalene diimide (NDI) units to a HBC-skeleton. A combination of Diels-Alder and Scholl-type oxidation reactions involving a symmetric di-NDI-tolane precursor were crucial for the very selective formation of the helical superstructure via a hexaphenyl-benzene (HPB) derivative. The formation of the diaza[7]helicene moiety in the ...[more]