Controlled cyclopolymerization of dienes by late transition metal complexes

Daisuke Takeuchi; Sehoon Park; Kohtaro Osakada

doi:10.5059/yukigoseikyokaishi.66.1049

Controlled cyclopolymerization of dienes by late transition metal complexes

Daisuke Takeuchi^*, Sehoon Park, Kohtaro Osakada

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 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 language	English
Pages (from-to)	1049-1056
Number of pages	8
Journal	Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry
Volume	66
Issue number	11
DOIs	https://doi.org/10.5059/yukigoseikyokaishi.66.1049
State	Published - Nov 2008
Externally published	Yes

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title = "Controlled cyclopolymerization of dienes by late transition metal complexes",

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.",

author = "Daisuke Takeuchi and Sehoon Park and Kohtaro Osakada",

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doi = "10.5059/yukigoseikyokaishi.66.1049",

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AU - Takeuchi, Daisuke

AU - Park, Sehoon

AU - Osakada, Kohtaro

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Y1 - 2008/11

N2 - 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.

AB - 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.

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SN - 0037-9980

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JO - Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry

JF - Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry

IS - 11

ER -

Controlled cyclopolymerization of dienes by late transition metal complexes

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