Beilstein J. Org. Chem.2015,11, 74–84, doi:10.3762/bjoc.11.11
functionalizations in terminal positions. First applications were presented with pyrene, cinnamoyl and anthracenyl labelled ARs.
Keywords: articulated rods; click chemistry; molecular rods; oligospiroketals; pyrene excimer; Introduction
One of the basic principles in living nature is based on shape-persistent and
based on spirocyclically joined saturated six-membered rings [8]. The key step of the synthesis of these rods is the formation of ketals and we therefore name this class of compounds oligospiroketals (OSKs).
Although the backbone of OSK rods contains many oxygen atoms, these atoms are shielded by
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Graphical Abstract
Figure 1:
Typical OSK rod A with solubility enhancing sleeve (D) and building blocks B,C,E.