Journal ArticleDOI
The possible use of alkali metal modified NbMCM-41 in the synthesis of 1,4-dihydropyridine intermediates
Zuzanna Zienkiewicz,Zuzanna Zienkiewicz,Vanesa Calvino-Casilda,Vanesa Calvino-Casilda,Izabela Sobczak,Maria Ziolek,Rosa M. Martín-Aranda,Antonio J. López-Peinado +7 more
TLDR
In this paper, the catalysts containing all alkali metals (from Li to Cs) supported on mesoporous niobosilicate molecular sieve, NbMCM-41, and for comparison also loaded on silicate MCM41, were characterized by N2 adsorption, XRD and test reactions.About:
This article is published in Catalysis Today.The article was published on 2009-04-30. It has received 24 citations till now. The article focuses on the topics: Knoevenagel condensation & Mesoporous material.read more
Citations
More filters
Journal ArticleDOI
Recent Advances in Catalysis Over Mesoporous Molecular Sieves
Rosa M. Martín-Aranda,Jiří Čejka +1 more
TL;DR: In this article, a recent overview of mesoporous molecular sieves as catalysts and catalysts supports is presented, including metathesis, acylation reactions, C-C coupling reactions of Heck and Suzuki types, base-catalyzed reactions (Knoevenagel and Michael additions, Claisen-Schmidt condensation, Tischenko reaction) and last but not least immobilization of organometallic complexes for different catalytic applications including chiral catalysts.
Journal ArticleDOI
Synthesis, characterization, and catalytic activity of ionic liquids based on biosources
P. Moriel,Eduardo J. Garcia-Suarez,M. Martinez,Ana B. García,Miguel A. Montes-Morán,V. Calvino-Casilda,Miguel A. Bañares +6 more
TL;DR: In this article, the catalytic role of cholinium and aminoacetate ions in the Knoevenagel condensation is discussed, and they were successfully applied as catalysts for the test reaction between benzaldehyde and different active methylene compounds, at room temperature and under solvent-free conditions.
Journal ArticleDOI
Knoevenagel condensation catalyzed by a tertiary-amine functionalized polyacrylonitrile fiber
Guowei Li,Jia Xiao,Wenqin Zhang +2 more
TL;DR: In this paper, a new fiber catalyst for Knoevenagel condensation has been prepared by aminating a commercially available polyacrylonitrile fiber with N,N-dimethyl-1,3-propanediamine.
Journal ArticleDOI
Rapid and efficient Knoevenagel condensation catalyzed by a novel protic ionic liquid under ultrasonic irradiation
TL;DR: An efficient and reusable protic-ionic-liquid solvent-catalyst system, HMTA-AcOH-H2O, has been developed and used in the Knoevenagel condensation reaction of aromatic aldehydes with ethyl 2-cyanoacetate as discussed by the authors.
Journal ArticleDOI
First report of the application of simple molecular complexes as organo-catalysts for Knoevenagel condensation
TL;DR: The role of acidic protons in molecular complexes in Knoevenagel condensations has been identified as the key factor and helps to provide useful information about the reaction pathway.
References
More filters
Journal ArticleDOI
The Determination of Pore Volume and Area Distributions in Porous Substances. I. Computations from Nitrogen Isotherms
Journal ArticleDOI
A new family of mesoporous molecular sieves prepared with liquid crystal templates
Jeffrey S. Beck,James C. Vartuli,Wieslaw J. Roth,M. E. Leonowicz,Charles T. Kresge,Kirk D. Schmitt,Cynthia Ting-Wah Chu,David H. Olson,E. W. Sheppard,S. B. McCullen,J. B. Higgins,J.L. Schlenker +11 more
TL;DR: In this paper, the synthesis, characterization, and proposed mechanism of formation of a new family of silicatelaluminosilicate mesoporous molecular sieves designated as M41S is described.
Journal ArticleDOI
Gas adsorption characterization of ordered organic-inorganic nanocomposite materials
Michal Kruk,Mietek Jaroniec +1 more
TL;DR: A critical review of adsorption methods that are currently used in the characterization of ordered organic−inorganic nanocomposite materials is presented in this paper, where the authors compare and evaluate the available methods for mesopore size analysis.
Journal ArticleDOI
Application of large pore MCM-41 molecular sieves to improve pore size analysis using nitrogen adsorption measurements
TL;DR: In this paper, it was shown that the Kelvin equation for the hemispherical meniscus, corrected for the statistical film thickness, is in quite good agreement with an experimental relation between the pore size and the capillary condensation pressure.
Book
Green Chemistry and Catalysis
TL;DR: In this article, the authors discuss the role of catalysts in the development of organic synthesis, and propose a method to use catalysts for transfer hydrogenation using Heterogeneous Reduction Catalysts.