Controlled cyclopolymerization of dienes by late transition metal complexes

Daisuke Takeuchi*, Sehoon Park, Kohtaro Osakada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This article reviews our recent studies on cyclopolymerization of 1,6-heptadiene derivatives catalyzed by late transition metal complexes. Pd-diimine complexes initiate cyclopolymerization of the 1,6-heptadienes with functional groups to afford the polymers containing functionalized trans-1,2-disubstituted cyclopentane rings along the polymer chain. Copolymerization of the dienes with ethylene and a-olefins also causes quantitative cyclization of the diene during the polymer growth. 1,6-Octadiene and higher mono-terminal dienes undergo the cyclopolymerization accompanied by chain walking of the growing polymer, leading to the polymers with trans-1,2-disubstituted cyclopentane groups located regularly along the linear polymer chain. The Fe and Co complexes with a bis(imino)pyridine ligand promote the polymerization of unsubstituted 1,6-heptadiene with quantitative cyclization to yield the polymers containing five-membered rings. The Fe complex-catalyzed reaction affords the polymers composed of cis-fused five-membered rings, whereas the polymer obtained by using Co catalyst contains trans-fused rings selectively.

Original languageEnglish
Pages (from-to)1049-1056
Number of pages8
JournalYuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry
Volume66
Issue number11
DOIs
StatePublished - Nov 2008
Externally publishedYes

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