NDLI: Direct synthesis of acid-base bifunctionalized hexagonal mesoporous silica and its catalytic activity in cascade reactions.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Sun, Jianrui Shang, Fanpeng Wu, Shujie Kan, Qiubin Guan, Jingqi Liu, Heng
Description	Author Affiliation: Shang F ( College of Chemistry, Jilin University, Changchun 130023, PR China.)
Abstract	A series of efficient acid-base bifunctionalized hexagonal mesoporous silica (HMS) catalysts contained aminopropyl and propanesulfonic acid have been synthesized through a simple co-condensation by protection of amino group. The results of small-angle XRD, TEM, and N(2) adsorption-desorption measurements show that the resultant materials have mesoscopic structures. X-ray photoelectron spectroscopies, elemental analysis (EA), back titration, (29)Si NMR and (13)C NMR confirm that the organosiloxanes were condensed as a part of the silica framework. The resultant catalysts exhibit excellent acid-basic properties, which make them possess high activity for one-pot deacetalization-Knoevenagel and deacetalization-nitroaldol (Henry) reactions.
ISSN	00219797
Issue Number	1
Journal	Journal of Colloid and Interface Science
Volume Number	355
e-ISSN	10957103
Language	English
Publisher	Elsevier
Publisher Date	2011-03-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Colloid & Interface Science
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Colloid and Surface Chemistry Biomaterials Electronic, Optical and Magnetic Materials

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Direct synthesis of acid-base bifunctionalized hexagonal mesoporous silica and its catalytic activity in cascade reactions.