Heterogenization of (η5-C5Me5) Ru(PPh3)2Cl and its catalytic application for cyclopropanation of styrene using ethyl diazoacetate

Ayyamperumal Sakthivel, Filipe E. Pedro, Anthony S.T. Chiang, Fritz E. Kühn

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

5-C5Me5)Ru(PPh3) 2Cl (1) is heterogenized on the surface of mesoporous molecular sieves by direct grafting on mesoporous aluminosilicates or by reaction of an aminosilane-linker-modified silicate surface with the chloride ligand. Elemental analyses reveal that the grafted samples contain 0.2-1.8 wt% Ru. The retaining of long-range ordering of mesoporous MCM-41 and MCM-48 after grafting is evidenced from XRD, N2 adsorption-desorption and TEM analysis. FT-IR, TG-MS, 29Si and 1H CP MAS-NMR spectra confirm the successful grafting of complex 1 on the surface of these mesoporous materials. Mesoporous materials grafted with complex 1 are found to be promising catalysts for the cyclopropanation of styrene with ethyl diazoacetate.

Original languageEnglish
Pages (from-to)1682-1688
Number of pages7
JournalSynthesis
Issue number10
DOIs
StatePublished - 15 May 2006

Keywords

  • Cyclopropanation
  • Ethyl diazoacetate
  • Mesoporous materials
  • Ruthenium complex

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