Cyclic and Multitalented

Cyclic and Multitalented

Author: David Bradley

A tool for synthetic organic chemists in the form of (E,E)-1,5-cyclooctadiene could find wide utility in chemical biology and polymer chemistry.

The highly strained molecule (E,E)-1,5-cyclooctadiene performs two fast reactions in so-called “click chemistry” – a reliable approach to synthesis based on “clicking” together simple building blocks. The reagent, known for 40 years but little investigated, undergoes [3+2] cycloadditions with 1,3-dipoles very quickly and the resulting cycloadduct then undergoes inverse-electron-demand Diels-Alder reactions with tetrazines at much higher rates than usual.

It could be used to make novel targeted drug molecules, supramolecular systems for nanotechnology and novel polymeric materials.

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