Key points are not available for this paper at this time.
The importance of tolerance: A Cobalt complex with bis(imino)pyridine ligand promotes the alternating copolymerization of ethylene with 2-aryl-1-methylenecyclopropanes to give polymers with regulated C4 repeating units that have a three-membered ring (see scheme). The polymerization is tolerant of functional groups on the three-membered ring such as methoxy and chloro groups.
Takeuchi et al. (2004) studied this question.