Abstract
Silica sol-gel entrapped acids, bases and organometallic catalysts are used successfully in one-pot reactions without interfering with each other. Both physically and covalently entrapped acids and bases were employed in these processes, including polystyrene sulfonic acid, 1-propane sulfonic acid, molybdosilicic acid (SiO2-MoO3), poly[(vinylbenzyltrimethyl)ammonium] hydroxide and 1,5,7-triazabicyclo[4.4.0]decene. The entrapped metal-based catalysts are Rh2Co2(CO)12 and RuCl2(PPh3)3. The one-pot reactions carried out with these heterogenized reagents and catalysts include formation of alkenes under acidic and basic conditions, C-C bond formation by condensation reactions with an a-carbon to a carbonyl, hydroformylation and hydrogenation.
Original language | English |
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Pages (from-to) | 43-46 |
Number of pages | 4 |
Journal | Journal of Sol-Gel Science and Technology |
Volume | 26 |
Issue number | 1-3 |
DOIs | |
State | Published - Jan 2003 |
Keywords
- Catalysis
- Doped sol-gel
- Hydrogenation
- One-pot reactions
- Ormosils
- Sol-gel acids
- Sol-gel bases