A new heterogeneous hybrid ruthenium catalyst being an eco-friendly option for the production of polymers and organic intermediates
作者:Bob De Clercq、Fr??d??ric Lefebvre、Francis Verpoort
DOI:10.1039/b202872g
日期:2002.8.22
We succeeded in synthesising and characterising a new heterogeneous hybrid ruthenium catalyst that exhibits excellent stability, reusability and leaching characteristics. The host–guest interaction is studied by XRD, XRF, ICP/MS, BET, FT-Raman and solid state NMR analysis. Moreover, we tested this catalytic system in ring-closing metathesis (RCM), ring-opening metathesis polymerization (ROMP), Kharasch addition, atom transfer radical polymerization (ATRP) and vinylation reactions. The results obtained from these tests show that for ROMP, RCM, Kharasch addition and vinylation reactions the heterogeneous catalyst possesses important advantages in comparison with its homogeneous analogue.
From atom transfer radical addition to atom transfer radical polymerisation of vinyl monomers mediated by ruthenium indenylidene complexes
作者:Tom Opstal、Francis Verpoort
DOI:10.1039/b210040a
日期:2003.1.20
Ruthenium indenylidene complexes provide a new class of versatile catalysts for promoting the AtomTransferRadicalAddition (ATRA) of carbon tetrachloride and chloroform toward a whole array of olefins such as acrylates, methacrylates, styrene and 1-octene. The reaction was successfully extended to an AtomTransferRadical Polymerisation (ATRP) process by changing the monomer/halide ratio. The polymerisation
Drǎguţan, Valerian; Verpoort, Francis, Revue Roumaine de Chimie, 2007, vol. 52, # 8-9, p. 905 - 915
作者:Drǎguţan, Valerian、Verpoort, Francis
DOI:——
日期:——
Radical reactions catalysed by homobimetallic ruthenium(II) complexes bearing Schiff base ligands: atom transfer radical addition and controlled polymerisation
作者:Bob De Clercq、Francis Verpoort
DOI:10.1016/s0040-4039(02)00834-1
日期:2002.5
The homobimetallic ruthenium Schiff base complexes Ia–f mediated the atomtransferradicaladdition (ATRA) of carbon tetrachloride across olefins in excellent yields which markedly depended on the catalyst and the substrate used. The best catalytic system Ic is able to compete with the highest performing rutheniumcatalysts reported so far for ATRA reactions. In addition these systems are also capable