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Synthesis, characterization and catalytic application of bifunctional catalyst: Al-MCM-41-NH2

Paper ID Volume ID Publish Year Pages File Format Full-Text
50888 46820 2011 5 PDF Available
Title
Synthesis, characterization and catalytic application of bifunctional catalyst: Al-MCM-41-NH2
Abstract

A new type of acid-base bifunctional mesoporous catalyst is prepared by the modification of Al-MCM-41 surfaces with organic amine functional groups. The ratio of acidic and basic sites on the solid surface can be adjusted by varying the amount of 3-aminopropyl-triethoxysilane (APTES) in the reaction medium (toluene). The acid-base bifunctional catalysts show high catalytic activities and selectivities in one-pot deacetalization–Knoevenagel and deacetalization–nitroaldol (Henry) reactions. The cohabiting of acidic and basic sites in the materials acting in a cooperative way to catalyze nitroaldol (Henry) reaction is also demonstrated.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► Acid-base bifunctional hexagonal mesoporous silica catalysts. ► Synthesized by simply grafting. ► Possess high activity for One-pot cascade reactions. ► An acid-base cooperative manner to catalyze nitroaldol reaction.

Keywords
Acid-base; Mesoporous materials; One-pot cascade reaction; Nitroaldol reaction
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Synthesis, characterization and catalytic application of bifunctional catalyst: Al-MCM-41-NH2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 8, 31 March 2011, Pages 739–743
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
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100% Money Back Guarantee
Full-text PDF Download
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