In situ activation of a latent ruthenium-carbene complex in ionic liquid and its application in ring-closing metathesis

Ju Hyun Kim; Boyoung Y. Park; Shu Wei Chen; Sang Gi Lee

doi:10.1002/ejoc.200801214

In situ activation of a latent ruthenium-carbene complex in ionic liquid and its application in ring-closing metathesis

Ju Hyun Kim, Boyoung Y. Park, Shu Wei Chen, Sang Gi Lee

Department of Chemistry & Nanoscience

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

12 Scopus citations

Abstract

Catalytically inactive, latent Ru-carboxylate complex 2, which was recently serendipitously isolated, can be activated in situ efficiently in ionic liquids (ILs) with the aid of imidazolium halides or tetrabutylammonium halides. The activity of the in situ activated catalyst was largely dependent on IL anions, imidazolium halides, and terabutylammonium halides. Under the optimal condition of 1.0 mol-% of [bmim][Br] in CH₂Cl₂/[bmim][SbF ₆] (1:1), latent Ru complex 2 was activated in situ to catalyze the ring-closing metathesis of various dienes with conversions of up to > 99%.

Original language	English
Pages (from-to)	2239-2242
Number of pages	4
Journal	European Journal of Organic Chemistry
Issue number	14
DOIs	https://doi.org/10.1002/ejoc.200801214
State	Published - May 2009

Keywords

Carbenoids
Ionic liquids
Metathesis
Ruthenium

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10.1002/ejoc.200801214

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title = "In situ activation of a latent ruthenium-carbene complex in ionic liquid and its application in ring-closing metathesis",

abstract = "Catalytically inactive, latent Ru-carboxylate complex 2, which was recently serendipitously isolated, can be activated in situ efficiently in ionic liquids (ILs) with the aid of imidazolium halides or tetrabutylammonium halides. The activity of the in situ activated catalyst was largely dependent on IL anions, imidazolium halides, and terabutylammonium halides. Under the optimal condition of 1.0 mol-% of [bmim][Br] in CH2Cl2/[bmim][SbF 6] (1:1), latent Ru complex 2 was activated in situ to catalyze the ring-closing metathesis of various dienes with conversions of up to > 99%.",

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T1 - In situ activation of a latent ruthenium-carbene complex in ionic liquid and its application in ring-closing metathesis

AU - Kim, Ju Hyun

AU - Park, Boyoung Y.

AU - Chen, Shu Wei

AU - Lee, Sang Gi

PY - 2009/5

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AB - Catalytically inactive, latent Ru-carboxylate complex 2, which was recently serendipitously isolated, can be activated in situ efficiently in ionic liquids (ILs) with the aid of imidazolium halides or tetrabutylammonium halides. The activity of the in situ activated catalyst was largely dependent on IL anions, imidazolium halides, and terabutylammonium halides. Under the optimal condition of 1.0 mol-% of [bmim][Br] in CH2Cl2/[bmim][SbF 6] (1:1), latent Ru complex 2 was activated in situ to catalyze the ring-closing metathesis of various dienes with conversions of up to > 99%.

KW - Carbenoids

KW - Ionic liquids

KW - Metathesis

KW - Ruthenium

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JO - European Journal of Organic Chemistry

JF - European Journal of Organic Chemistry

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ER -

In situ activation of a latent ruthenium-carbene complex in ionic liquid and its application in ring-closing metathesis

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Keywords

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