image from: Parker, K. A., Sampson, N. S. (2016) “From ROMP to AROMP: using substituted cyclobutenes to precisely control polymer structure,” Accounts of Chemical Research49, 408-417. DOI: 10.1021/acs.accounts.5b00490.  

We developed 1-substituted cyclobutenes as monomers for ruthenium-catalyzed metathesis. Most notably, these methods enable the synthesis of precisely alternating polymers that have been employed as scaffolds to explore the requirements for spacing. We are presently expanding synthesis to make new materials for technology applications. Methods for preparing precise polymer sequence are under development. Monomers may be obtained from Kerafast: