Magnesium-Lanthanum Mixed Metal Oxide: a Strong Solid Base for the Michael Addition Reaction
作者:Bhaskar Veldurthy、Jean Marc Clacens、François Figueras
DOI:10.1002/adsc.200404371
日期:2005.5
Michael additions were achieved quantitatively at room temperature with a broad spectrum of acceptors and donors, using a magnesium-lanthanum mixed oxide, a strong solid base. The best solvent for the reaction is dimethylformamide, but good yields were also obtained using toluene as solvent. The results obtained with magnesium-lanthanum are comparable to those reported for super bases. The catalyst