Abstract
An efficient, environmentally friendly procedure is developed for the condensation of aldehydes/ketones and activated methylene compounds by using an aminopropyl-functionalized MCM-41 catalyst in aqueous solution. Different aldehydes/ketones and activated methylene compounds gave the corresponding alkenes in 78-97% isolated yields in mild reaction conditions. In comparison with organic solution, the aqueous solution gives higher yields in the same reaction conditions. Further more, the aminopropyl-functionalized MCM-41 in aqueous system can be reused for 8 times without significant decrease of activity.
| Original language | English |
|---|---|
| Pages (from-to) | 1293-1296 |
| Number of pages | 4 |
| Journal | Chinese Chemical Letters |
| Volume | 17 |
| Issue number | 10 |
| State | Published - Oct 2006 |
Keywords
- Aminopropyl-functionalized MCM41
- Aqueous-phase reaction
- Knoevenagel condensation