Articulated rods – a novel class of molecular rods based on oligospiroketals (OSK)

• Pablo Wessig,
• Roswitha Merkel and
• Peter Müller

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