https://www.selleckchem.com/pr....oducts/Gefitinib.htm
The synthesis of a new type of chiral and dynamic non-planar aromatics containing a combination of fused perylene based coronenes and helicenes is reported. Either one or two helicene moieties were fused to the bay regions of an extended perylene core. The target compounds contain either identical or two different helicene building blocks. The combination with two helicene units leads to six different isomers, including two pairs of enantiomers and two meso forms. The experimental determination of the isomerization barriers the corres
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