Aerobic epoxidation of alkenes using polymer-bound Mukaiyama catalysts
Bastienne Wentzel
14 augustus 2000, Wetenschappelijke publicaties
B.B. Wentzel et al, J. Chem. Soc., Perkin Trans. I (2000) 20, 3428-3431.
Abstract
Nickel(II) acetylacetonate bound to polybenzimidazole has been shown to be an efficient catalyst for the aerobic epoxidation of alkenes with an aldehyde as co-reactant. Rates of reaction and yields of epoxide are higher with this system than with dissolved Ni(II) acetylacetonate under otherwise identical conditions. The polymer-bound complex acts as a heterogeneous catalyst and can be recovered from the reaction mixture. Some loss of activity is observed upon re-use of the catalyst due to leaching of the metal complexes.
J. Chem. Soc., Perkin Trans. I (2000) 20, 3428-3431
Bastienne B. Wentzel, Salla-M. Leinonen, Stephen Thomson, David C. Sherrington,Martinus C. Feiters and Roeland J. M. Nolte
Nickel(II) acetylacetonate bound to polybenzimidazole has been shown to be an efficient catalyst for the aerobic epoxidation of alkenes with an aldehyde as co-reactant. Rates of reaction and yields of epoxide are higher with this system than with dissolved Ni(II) acetylacetonate under otherwise identical conditions. The polymer-bound complex acts as a heterogeneous catalyst and can be recovered from the reaction mixture. Some loss of activity is observed upon re-use of the catalyst due to leaching of the metal complexes.
J. Chem. Soc., Perkin Trans. I (2000) 20, 3428-3431
Bastienne B. Wentzel, Salla-M. Leinonen, Stephen Thomson, David C. Sherrington,Martinus C. Feiters and Roeland J. M. Nolte