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Abstract
The investigation of hybrid catalysts has been driven by the vision of combining the positive aspects of a homogeneous catalyst (i.e. site homogeneity, high activity per site, high selectivity and reproducibility) with those of heterogeneous catalysts (long life time, ease of separation, continuous operation). With the invention of MCM mesoporous silica, a new generation of improved supports for covalent binding of complexes became available. Such silica's not only show regular mesopores with variable size but also have very reactive intraparticle siloxane bridges and silanol groups for covalent linking of metal complexes. The reaction of the intraparticle surface of mesoporous silica with organosilicon spacers has recently proven to be a very flexible surface functionalisation technique. Here we present the immobilisation of [RuCl2(p-cymene)](2) on phosphine modified MCM-41 and of a Shiff base substituted Grubbs catalyst on MCM-41. Besides the synthesis and characterisation of the catalysts, results on ROMP reactions are presented.
Keywords
OPENING METATHESIS POLYMERIZATION, OLEFIN METATHESIS, COMPLEXES, LIGANDS

Citation

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MLA
De Clercq, Bob, et al. “Heterogenation of a Shiff Base Substituted Grubbs Catalyst and a Ru-Dimer to Perform Romp Reactions.” Ring Opening Metathesis Polymerisation and Related Chemistry : State of the Art and Visions for the New Century, edited by E Khosravi and T Szymanska-Buzar, vol. 56, Kluwer Academic, 2002, pp. 451–64.
APA
De Clercq, B., Opstal, T., Melis, K., & Verpoort, F. (2002). Heterogenation of a shiff base substituted Grubbs catalyst and a Ru-dimer to perform romp reactions. In E. Khosravi & T. Szymanska-Buzar (Eds.), Ring opening metathesis polymerisation and related chemistry : state of the art and visions for the new century (Vol. 56, pp. 451–464). Dordrecht, The Netherlands: Kluwer Academic.
Chicago author-date
De Clercq, Bob, Tom Opstal, Karen Melis, and Francis Verpoort. 2002. “Heterogenation of a Shiff Base Substituted Grubbs Catalyst and a Ru-Dimer to Perform Romp Reactions.” In Ring Opening Metathesis Polymerisation and Related Chemistry : State of the Art and Visions for the New Century, edited by E Khosravi and T Szymanska-Buzar, 56:451–64. Dordrecht, The Netherlands: Kluwer Academic.
Chicago author-date (all authors)
De Clercq, Bob, Tom Opstal, Karen Melis, and Francis Verpoort. 2002. “Heterogenation of a Shiff Base Substituted Grubbs Catalyst and a Ru-Dimer to Perform Romp Reactions.” In Ring Opening Metathesis Polymerisation and Related Chemistry : State of the Art and Visions for the New Century, ed by. E Khosravi and T Szymanska-Buzar, 56:451–464. Dordrecht, The Netherlands: Kluwer Academic.
Vancouver
1.
De Clercq B, Opstal T, Melis K, Verpoort F. Heterogenation of a shiff base substituted Grubbs catalyst and a Ru-dimer to perform romp reactions. In: Khosravi E, Szymanska-Buzar T, editors. Ring opening metathesis polymerisation and related chemistry : state of the art and visions for the new century. Dordrecht, The Netherlands: Kluwer Academic; 2002. p. 451–64.
IEEE
[1]
B. De Clercq, T. Opstal, K. Melis, and F. Verpoort, “Heterogenation of a shiff base substituted Grubbs catalyst and a Ru-dimer to perform romp reactions,” in Ring opening metathesis polymerisation and related chemistry : state of the art and visions for the new century, Polaica-Zdroy, Poland, 2002, vol. 56, pp. 451–464.
@inproceedings{402578,
  abstract     = {The investigation of hybrid catalysts has been driven by the vision of combining the positive aspects of a homogeneous catalyst (i.e. site homogeneity, high activity per site, high selectivity and reproducibility) with those of heterogeneous catalysts (long life time, ease of separation, continuous operation). With the invention of MCM mesoporous silica, a new generation of improved supports for covalent binding of complexes became available. Such silica's not only show regular mesopores with variable size but also have very reactive intraparticle siloxane bridges and silanol groups for covalent linking of metal complexes. The reaction of the intraparticle surface of mesoporous silica with organosilicon spacers has recently proven to be a very flexible surface functionalisation technique. Here we present the immobilisation of [RuCl2(p-cymene)](2) on phosphine modified MCM-41 and of a Shiff base substituted Grubbs catalyst on MCM-41. Besides the synthesis and characterisation of the catalysts, results on ROMP reactions are presented.},
  author       = {De Clercq, Bob and Opstal, Tom and Melis, Karen and Verpoort, Francis},
  booktitle    = {Ring opening metathesis polymerisation and related chemistry : state of the art and visions for the new century},
  editor       = {Khosravi, E and Szymanska-Buzar, T},
  isbn         = {9781402005589},
  keywords     = {OPENING METATHESIS POLYMERIZATION,OLEFIN METATHESIS,COMPLEXES,LIGANDS},
  language     = {eng},
  location     = {Polaica-Zdroy, Poland},
  pages        = {451--464},
  publisher    = {Kluwer Academic},
  title        = {Heterogenation of a shiff base substituted Grubbs catalyst and a Ru-dimer to perform romp reactions},
  volume       = {56},
  year         = {2002},
}

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