Synthesis and characterization of non-chelating ruthenium-indenylidene olefin metathesis catalysts derived from substituted 1,1-diphenyl-2-propyn-1-ols

Baoyi Yu, Yu Xie, Fatma B. Hamad, Karen Leus, Alex A. Lyapkov, Kristof Van Hecke, Francis Walter Cornelius Verpoort

Research output: Contribution to journalArticle

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Abstract

We report on the synthesis and characterization of the first generation of modified non-chelating indenylidene ruthenium catalysts denoted as RuCl2(4-methyl-3-(o-tolyl)-1-indenylidene)(PCy3)2 5a, RuCl2(3-(p-fluorophenyl)-1-indenylidene)(PCy3)2 5b, RuCl2(3-(2,6-xylyl)-1-indenylidene)(PCy3)2 5c and RuCl2(3-(1-naphthyl)-1-indenylidene)(PCy3)2 5d. The obtained complexes of 5a-d were characterized by means of NMR spectroscopy and elemental analysis. Moreover the structures of 5a-d were confirmed by single-crystal X-ray diffraction and compared with the standard ruthenium indenylidene complex 3 and the chelating benzylidene complex 2. Additionally, the catalytic performances of the obtained complexes 5a-d were evaluated in various metathesis reactions demonstrating that the ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROMP) reactions revealed a similar catalytic activity in comparison with the reference indenylidene catalyst 3.

Original languageEnglish
Pages (from-to)1858-1867
Number of pages10
JournalNew Journal of Chemistry
Volume39
Issue number3
DOIs
Publication statusPublished - 1 Mar 2015

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Ruthenium
Alkenes
Olefins
Catalysts
Ring opening polymerization
Chelation
Nuclear magnetic resonance spectroscopy
Catalyst activity
Single crystals
X ray diffraction
Chemical analysis
diphenyl

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Materials Chemistry

Cite this

Synthesis and characterization of non-chelating ruthenium-indenylidene olefin metathesis catalysts derived from substituted 1,1-diphenyl-2-propyn-1-ols. / Yu, Baoyi; Xie, Yu; Hamad, Fatma B.; Leus, Karen; Lyapkov, Alex A.; Van Hecke, Kristof; Verpoort, Francis Walter Cornelius.

In: New Journal of Chemistry, Vol. 39, No. 3, 01.03.2015, p. 1858-1867.

Research output: Contribution to journalArticle

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abstract = "We report on the synthesis and characterization of the first generation of modified non-chelating indenylidene ruthenium catalysts denoted as RuCl2(4-methyl-3-(o-tolyl)-1-indenylidene)(PCy3)2 5a, RuCl2(3-(p-fluorophenyl)-1-indenylidene)(PCy3)2 5b, RuCl2(3-(2,6-xylyl)-1-indenylidene)(PCy3)2 5c and RuCl2(3-(1-naphthyl)-1-indenylidene)(PCy3)2 5d. The obtained complexes of 5a-d were characterized by means of NMR spectroscopy and elemental analysis. Moreover the structures of 5a-d were confirmed by single-crystal X-ray diffraction and compared with the standard ruthenium indenylidene complex 3 and the chelating benzylidene complex 2. Additionally, the catalytic performances of the obtained complexes 5a-d were evaluated in various metathesis reactions demonstrating that the ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROMP) reactions revealed a similar catalytic activity in comparison with the reference indenylidene catalyst 3.",
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