期刊
CATALYSIS COMMUNICATIONS
卷 12, 期 8, 页码 739-743出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2011.01.010
关键词
Acid-base; Mesoporous materials; One-pot cascade reaction; Nitroaldol reaction
资金
- National Natural Science Foundation of China [201373046]
- National Natural Science Foundation of Jilin province [20090591]
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 dezacetalization-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. (c) 2011 Elsevier B.V. All rights reserved.
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