Supported Choline hydroxide (cas 123-41-1) (ionic liquid) on mesoporous silica as heterogeneous catalyst for Knoevenagel condensation reactions
-
Add time:09/08/2019 Source:sciencedirect.com
In this work hybrid mesoporous SBA-15 and mesoporous silica microspheres functionalized with Choline hydroxide (cas 123-41-1) ionic liquid have been prepared. A two-step process inspired by the industrial production of choline hydroxide has been developed to synthesize the hybrid SBA-15 material with choline hydroxide ionic liquid (Chol-SBA-15) and the hybrid SBA-15 material with choline hydroxide ionic liquid and hexamethyldisilizane as capping agent (Chol-HMDS-SBA-15). For the preparation of hybrid mesoporous silica microspheres (Chol-MSMs), a co-condensation method has been employed with an ionic liquid prepared by reaction of 3-(glycidyloxypropyl)trimethoxysilane and trimethylamine in aqueous media. The synthesized materials have been fully characterized by elemental analysis, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), N2 adsorption-desorption, transmission electron microscopy (TEM) and 13C CP/MAS NMR spectroscopy. These materials have been tested successfully as catalysts in Knoevenagel condensation of benzaldehyde with RCH2C≡N (R = CN (malononitrile), CO2Et (ethyl cyanoacetate)). The catalyst Chol-MSMs showed high catalytic activity, 99% of conversion and 99% of selectivity towards ethyl 2-cyano-3-phenylacrylate in 2 h of reaction and using ethanol as solvent. In addition, their reusability without loss of activity has been demonstrated.
We also recommend Trading Suppliers and Manufacturers of Choline hydroxide (cas 123-41-1). Pls Click Website Link as below: cas 123-41-1 suppliers
Prev:Facile hydrogen production from Al-water reaction promoted by Choline hydroxide (cas 123-41-1)
Next:Biodiesel production from Norouzak (Salvia leriifolia) oil using Choline hydroxide (cas 123-41-1) catalyst in a microchannel reactor) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Insight into impact of choline-based ionic liquids on bovine β-lactoglobulin structural analysis: Unexpected high thermal stability of protein10/01/2019
- ArticleCooperative structure-directing effect of choline cation and *BEA zeolite in the synthesis of aluminogermanosilicate IWR zeolite09/27/2019
- Comparative disposition of dimethylaminoethanol and choline in rats and mice following oral or intravenous administration09/26/2019
- Self-assembly of myristic acid in the presence of Choline hydroxide (cas 123-41-1): Effect of molar ratio and temperature09/25/2019
- Solubilisation of stearic acid by the organic base Choline hydroxide (cas 123-41-1)☆09/24/2019
- Biodegradable Choline hydroxide (cas 123-41-1) promoted environmentally benign thiolysis of epoxides09/10/2019
- Biodiesel production from Norouzak (Salvia leriifolia) oil using Choline hydroxide (cas 123-41-1) catalyst in a microchannel reactor09/09/2019
- Facile hydrogen production from Al-water reaction promoted by Choline hydroxide (cas 123-41-1)09/07/2019
-
Health and Chemical more >
-
Related Products
- Choline (1alpha,3alpha,4alpha,5beta)-1,3-bis(3,4-dihydroxycinnamoyloxy)-4,5-dihydroxycyclohexanecarboxylate
- Choline acetate (ester)
- Choline bicarbonate
- Choline bitartrate
- Choline chloride
- Choline dihydrogencitrate salt
- Choline fenofibrate
- Choline glycerophosphate
- Choline hydroxide
- Choline magnesium trisalicylate