Autor: |
Veldurthy, Bhaskar, Clacens, Jean 4;Marc, Figueras, François |
Zdroj: |
Advanced Synthesis & Catalysis; May 2005, Vol. 347 Issue: 6 p767-771, 5p |
Abstrakt: |
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 can be separated from the reaction mixture and recycled five times without loss of activity with no other treatment. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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