Pd-catalyzed asymmetric alternating co-polymerization of propene with carbon monoxide using ionic liquids

Hai Jun Wang; Lai Lai Wang; Wing Sze Lam; Wing Yiu Yu; Albert S.C. Chan

doi:10.1016/j.tetasy.2005.11.030

Pd-catalyzed asymmetric alternating co-polymerization of propene with carbon monoxide using ionic liquids

Hai Jun Wang, Lai Lai Wang, Wing Sze Lam, Wing Yiu Yu, Albert S.C. Chan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

15 Citations (Scopus)

Abstract

A protocol for Pd-catalyzed stereoselective co-polymerization of propene and carbon monoxide using chiral ligands, such as (2S,3S)-DIOP and (R)-P-Phos in [C4mim][PF6]/[C6mim][PF6] as an ionic liquid medium was developed. With (2S,3S)-DIOP as chiral ligand and [C4mim][PF6] as medium, the Pd-catalyzed co-polymerization of propene and CO gave almost completely regioregular polyketones, and the product polymer showed moderate stereoregularity (61% of ℓ-diads). The highest molar optical rotation = +15.9 and polydispersity = 1.2 were attained when (R)-P-Phos was used as the ligand and [C6mim]PF6as the solvent. The co-polymer exhibited regioregularity of H-H/H-T/T-T (%) = 17:66:17.

Original language	English
Pages (from-to)	7-11
Number of pages	5
Journal	Tetrahedron Asymmetry
Volume	17
Issue number	1
DOIs	https://doi.org/10.1016/j.tetasy.2005.11.030
Publication status	Published - 9 Jan 2006

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1016/j.tetasy.2005.11.030

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title = "Pd-catalyzed asymmetric alternating co-polymerization of propene with carbon monoxide using ionic liquids",

abstract = "A protocol for Pd-catalyzed stereoselective co-polymerization of propene and carbon monoxide using chiral ligands, such as (2S,3S)-DIOP and (R)-P-Phos in [C4mim][PF6]/[C6mim][PF6] as an ionic liquid medium was developed. With (2S,3S)-DIOP as chiral ligand and [C4mim][PF6] as medium, the Pd-catalyzed co-polymerization of propene and CO gave almost completely regioregular polyketones, and the product polymer showed moderate stereoregularity (61% of ℓ-diads). The highest molar optical rotation = +15.9 and polydispersity = 1.2 were attained when (R)-P-Phos was used as the ligand and [C6mim]PF6as the solvent. The co-polymer exhibited regioregularity of H-H/H-T/T-T (%) = 17:66:17.",

author = "Wang, {Hai Jun} and Wang, {Lai Lai} and Lam, {Wing Sze} and Yu, {Wing Yiu} and Chan, {Albert S.C.}",

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T1 - Pd-catalyzed asymmetric alternating co-polymerization of propene with carbon monoxide using ionic liquids

AU - Wang, Hai Jun

AU - Wang, Lai Lai

AU - Lam, Wing Sze

AU - Yu, Wing Yiu

AU - Chan, Albert S.C.

PY - 2006/1/9

Y1 - 2006/1/9

N2 - A protocol for Pd-catalyzed stereoselective co-polymerization of propene and carbon monoxide using chiral ligands, such as (2S,3S)-DIOP and (R)-P-Phos in [C4mim][PF6]/[C6mim][PF6] as an ionic liquid medium was developed. With (2S,3S)-DIOP as chiral ligand and [C4mim][PF6] as medium, the Pd-catalyzed co-polymerization of propene and CO gave almost completely regioregular polyketones, and the product polymer showed moderate stereoregularity (61% of ℓ-diads). The highest molar optical rotation = +15.9 and polydispersity = 1.2 were attained when (R)-P-Phos was used as the ligand and [C6mim]PF6as the solvent. The co-polymer exhibited regioregularity of H-H/H-T/T-T (%) = 17:66:17.

AB - A protocol for Pd-catalyzed stereoselective co-polymerization of propene and carbon monoxide using chiral ligands, such as (2S,3S)-DIOP and (R)-P-Phos in [C4mim][PF6]/[C6mim][PF6] as an ionic liquid medium was developed. With (2S,3S)-DIOP as chiral ligand and [C4mim][PF6] as medium, the Pd-catalyzed co-polymerization of propene and CO gave almost completely regioregular polyketones, and the product polymer showed moderate stereoregularity (61% of ℓ-diads). The highest molar optical rotation = +15.9 and polydispersity = 1.2 were attained when (R)-P-Phos was used as the ligand and [C6mim]PF6as the solvent. The co-polymer exhibited regioregularity of H-H/H-T/T-T (%) = 17:66:17.

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DO - 10.1016/j.tetasy.2005.11.030

M3 - Journal article

SN - 0957-4166

VL - 17

SP - 7

EP - 11

JO - Tetrahedron Asymmetry

JF - Tetrahedron Asymmetry

IS - 1

ER -

Pd-catalyzed asymmetric alternating co-polymerization of propene with carbon monoxide using ionic liquids

Abstract

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