Selective Ethylene Dimerization into 2-Butenes Using Homogeneous and Supported Nickel(II) 2-Iminopyridine Catalysts

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Selective Ethylene Dimerization into 2-Butenes Using Homogeneous and Supported Nickel(II) 2-Iminopyridine Catalysts. / Antonov, Artem A.; Semikolenova, Nina V.; Soshnikov, Igor E. et al.

In: Topics in Catalysis, Vol. 63, 01.03.2020, p. 222-228.

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

BibTeX

@article{30cd5dcd4d2343f9b67c702effb55262,

title = "Selective Ethylene Dimerization into 2-Butenes Using Homogeneous and Supported Nickel(II) 2-Iminopyridine Catalysts",

abstract = "Abstract: In this work, we report a series of novel nickel(II) dibromide and dichloride complexes with 2-iminopyridine and 2-iminoquinoline ligands bearing electron-withdrawing substituents (F, Cl, CF3), that have demonstrated high ethylene dimerization activity [up to 19.2 × 106 g of oligomers·(mol Ni)−1 h−1] in the presence of MAO or Et2AlCl, affording predominantly a mixture of 1-butene and cis- and trans-2-butene (C4 selectivity varies from 89 to 100%; 2-butenes selectivity in the C4 fraction approaches 96%). The effects of ligand substituents and the cocatalyst nature on the activity and selectivity of the nickel(II) complexes in ethylene dimerization have been established. Several nickel complexes were supported on silica-alumina and the resulting heterogeneous catalysts were probed towards ethylene dimerization. These catalysts also afford 2-butenes, with the activity and C4 selectivity being comparable to that of homogeneous catalysts.",

keywords = "2-Butene, 2-Iminopyridine, Dimerization, Electron-withdrawing, Ethylene, Nickel, TOLUENE, POLYMERIZATION, NI(II) COMPLEXES, DIIMINE COMPLEXES, MONONUCLEAR, LIGANDS, RECENT PROGRESS, SYSTEMS, FRIEDEL-CRAFTS ALKYLATION, OLIGOMERIZATION",

author = "Antonov, {Artem A.} and Semikolenova, {Nina V.} and Soshnikov, {Igor E.} and Talsi, {Evgenii P.} and Bryliakov, {Konstantin P.}",

year = "2020",

month = mar,

day = "1",

doi = "10.1007/s11244-019-01208-8",

language = "English",

volume = "63",

pages = "222--228",

journal = "Topics in Catalysis",

issn = "1022-5528",

publisher = "Springer Netherlands",

}

RIS

TY - JOUR

T1 - Selective Ethylene Dimerization into 2-Butenes Using Homogeneous and Supported Nickel(II) 2-Iminopyridine Catalysts

AU - Antonov, Artem A.

AU - Semikolenova, Nina V.

AU - Soshnikov, Igor E.

AU - Talsi, Evgenii P.

AU - Bryliakov, Konstantin P.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Abstract: In this work, we report a series of novel nickel(II) dibromide and dichloride complexes with 2-iminopyridine and 2-iminoquinoline ligands bearing electron-withdrawing substituents (F, Cl, CF3), that have demonstrated high ethylene dimerization activity [up to 19.2 × 106 g of oligomers·(mol Ni)−1 h−1] in the presence of MAO or Et2AlCl, affording predominantly a mixture of 1-butene and cis- and trans-2-butene (C4 selectivity varies from 89 to 100%; 2-butenes selectivity in the C4 fraction approaches 96%). The effects of ligand substituents and the cocatalyst nature on the activity and selectivity of the nickel(II) complexes in ethylene dimerization have been established. Several nickel complexes were supported on silica-alumina and the resulting heterogeneous catalysts were probed towards ethylene dimerization. These catalysts also afford 2-butenes, with the activity and C4 selectivity being comparable to that of homogeneous catalysts.

AB - Abstract: In this work, we report a series of novel nickel(II) dibromide and dichloride complexes with 2-iminopyridine and 2-iminoquinoline ligands bearing electron-withdrawing substituents (F, Cl, CF3), that have demonstrated high ethylene dimerization activity [up to 19.2 × 106 g of oligomers·(mol Ni)−1 h−1] in the presence of MAO or Et2AlCl, affording predominantly a mixture of 1-butene and cis- and trans-2-butene (C4 selectivity varies from 89 to 100%; 2-butenes selectivity in the C4 fraction approaches 96%). The effects of ligand substituents and the cocatalyst nature on the activity and selectivity of the nickel(II) complexes in ethylene dimerization have been established. Several nickel complexes were supported on silica-alumina and the resulting heterogeneous catalysts were probed towards ethylene dimerization. These catalysts also afford 2-butenes, with the activity and C4 selectivity being comparable to that of homogeneous catalysts.

KW - 2-Butene

KW - 2-Iminopyridine

KW - Dimerization

KW - Electron-withdrawing

KW - Ethylene

KW - Nickel

KW - TOLUENE

KW - POLYMERIZATION

KW - NI(II) COMPLEXES

KW - DIIMINE COMPLEXES

KW - MONONUCLEAR

KW - LIGANDS

KW - RECENT PROGRESS

KW - SYSTEMS

KW - FRIEDEL-CRAFTS ALKYLATION

KW - OLIGOMERIZATION

UR - http://www.scopus.com/inward/record.url?scp=85075873202&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/c0324f42-efdd-31a1-a21a-10fa972e51fb/

U2 - 10.1007/s11244-019-01208-8

DO - 10.1007/s11244-019-01208-8

M3 - Article

AN - SCOPUS:85075873202

VL - 63

SP - 222

EP - 228

JO - Topics in Catalysis

JF - Topics in Catalysis

SN - 1022-5528

ER -

ID: 22574699