1402921-30-5Relevant articles and documents
A fragment-based approach toward substituted trioxa[7]helicenes
Kelgtermans, Hans,Dobrzanska, Liliana,Dehaen, Wim,Van Meervelt, Luc
, p. 5200 - 5203,4 (2012)
A series of novel substituted trioxa[7]helicenes have been successfully prepared by a one-pot palladium catalyzed C-H arylation reaction starting from readily prepared dibenzofuran fragments. The dinitro-substituted helicene was analyzed by X-ray crystallography revealing the occurrence of two distinct enantiomers in the asymmetric unit, which forms interesting supramolecular motifs in the crystal, based on weak H-bonding interactions.