scholarly journals Properties and activity of Zn–Ta-TUD-1 in the Lebedev process

2020 ◽  
Vol 22 (8) ◽  
pp. 2558-2574 ◽  
Author(s):  
Guillaume Pomalaza ◽  
Pardis Simon ◽  
Ahmed Addad ◽  
Mickaël Capron ◽  
Franck Dumeignil
Keyword(s):  
Mesoporous Silica ◽  
One Pot ◽  
Highly Active ◽  
The One

A zinc and tantalum-containing mesoporous silica catalyst highly active and selective in the Lebedev process has been prepared using the one-pot TUD-1 methodology. Characterization established a correlation between acidity and butadiene formation.

Synthesis and characterization of dicationic 4,4′-bipyridinium dichloride ordered mesoporous silica nanocomposite and its application in the preparation of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives

RSC Advances ◽  
2015 ◽  
Vol 5 (33) ◽  
pp. 25816-25823 ◽  
Author(s):  
Aigin Bashti ◽  
Ali Reza Kiasat ◽  
Babak Mokhtari
Keyword(s):  
Mesoporous Silica ◽  
Synthesis And Characterization ◽  
Ordered Mesoporous Silica ◽  
One Pot ◽  
Ordered Mesoporous ◽  
Environmentally Safe ◽  
P Application ◽  
The One ◽  
Solvent Free Synthesis

Application of SBA@BiPy2+ 2Cl− nanocomposite as a novel environmentally safe heterogeneous nanoreactor for the one-pot solvent-free synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives.

scholarly journals Synthesis and morphological characterization of phenyl-modified macroporous–mesoporous hybrid silica monoliths

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20283-20294 ◽  
Author(s):  
Rafael Meinusch ◽  
Kristof Hormann ◽  
Romana Hakim ◽  
Ulrich Tallarek ◽  
Bernd M. Smarsly
Keyword(s):  
Mesoporous Silica ◽  
Morphological Characterization ◽  
Comprehensive Approach ◽  
One Pot ◽  
Silica Monoliths ◽  
One Pot Synthesis ◽  
Hybrid Silica ◽  
The One

We present a comprehensive approach to characterize the one-pot synthesis, macropore space morphology, and chromatographic performance of phenyl-modified macro–mesoporous silica monoliths.

A magnetic metal–organic framework as a highly active heterogeneous catalyst for one-pot synthesis of 2-substituted alkyl and aryl(indolyl)kojic acid derivatives

2017 ◽  
Vol 41 (15) ◽  
pp. 7108-7115 ◽  
Author(s):  
Hong-Yan Zhang ◽  
Xiao-Peng Hao ◽  
Li-Ping Mo ◽  
Sha-Sha Liu ◽  
Wen-Bo Zhang ◽  
...  
Keyword(s):  
Kojic Acid ◽  
Metal Organic Framework ◽  
One Pot ◽  
Efficient Catalyst ◽  
Highly Active ◽  
Three Component Reaction ◽  
Magnetic Metal ◽  
Metal Organic ◽  
The One ◽  
Organic Framework

A novel magnetic metal–organic framework, NiFe2O4@MOF-5, was prepared and demonstrated to be a highly efficient catalyst for the one-pot three-component reaction of aldehyde, indole, and kojic acid.

Silica-supported ZnCl2 — A highly active and reusable heterogeneous catalyst for the one-pot synthesis of dihydropyrimidinones–thiones

2007 ◽  
Vol 85 (3) ◽  
pp. 197-201 ◽  
Author(s):  
Raman Gupta ◽  
Monika Gupta ◽  
Satya Paul ◽  
Rajive Gupta
Keyword(s):  
Zinc Chloride ◽  
Biginelli Reaction ◽  
Catalyst Loading ◽  
Reaction Conditions ◽  
One Pot ◽  
Highly Active ◽  
Chloride Catalyst ◽  
Biginelli Compounds ◽  
The One ◽  
Low Catalyst Loading

A novel silica-supported zinc chloride catalyst was prepared and investigated for the Biginelli reaction. The key features of the catalyst include rapid reaction with 100% conversion of aldehyde, good catalyst recyclability, and high stability under the reaction conditions (passes hot filtration test successfully). A low catalyst loading (12 mol% of ZnCl2) was required to achieve a quantitative reaction. Other catalysts such as SiO2–AlCl2, SiO2–AlCl2–ZnCl2 were also prepared and their activity was compared with SiO2–ZnCl2 for the Biginelli reaction.Key words: silica gel, zinc chloride, Biginelli compounds, heterogeneous catalysis, reusability.

Cu3L2 metal–organic cages for A3-coupling reactions: reversible coordination interaction triggered homogeneous catalysis and heterogeneous recovery

2018 ◽  
Vol 54 (82) ◽  
pp. 11550-11553 ◽  
Author(s):  
Gong-Jun Chen ◽  
Chao-Qun Chen ◽  
Xue-Tian Li ◽  
Hui-Chao Ma ◽  
Yu-Bin Dong
Keyword(s):  
Homogeneous Catalysis ◽  
Coupling Reaction ◽  
Reusable Catalyst ◽  
Coupling Reactions ◽  
Coordination Interaction ◽  
One Pot ◽  
Highly Active ◽  
Metal Organic ◽  
The One ◽  
A3 Coupling

A novel Cu3L2 metal–organic cage, which features coordination interaction triggered solubility, can be a highly active and reusable catalyst to homogeneously catalyse the one-pot aldehyde–alkyne–amine A3-coupling reaction.

scholarly journals Aerobic synthesis of N-sulfonylamidines mediated by N-heterocyclic carbene copper(I) catalysts

2020 ◽  
Vol 16 ◽  
pp. 482-491
Author(s):  
Faïma Lazreg ◽  
Marie Vasseur ◽  
Alexandra M Z Slawin ◽  
Catherine S J Cazin
Keyword(s):  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
Highly Active ◽  
Copper Acetylide ◽  
The One

A new catalytic strategy for the one-pot synthesis of N-sulfonylamidines is described. The cationic copper(I) complexes were found to be highly active and efficient under mild conditions in air and in the absence of solvent. A copper acetylide is proposed as key intermediate in this transformation.

2-Phenyl-2,3-dihydrobenzo[d]thiazole: A Mild, Efficient, and Highly Active in situ Generated Chemoselective Reducing Agent for the One-Pot Synthesis of 5-Monoalkylbarbiturates in Water

Synlett ◽  
2017 ◽  
Vol 29 (04) ◽  
pp. 477-482 ◽  
Author(s):  
Dibakar Deka ◽  
Subarna Kalita
Keyword(s):  
Reducing Agent ◽  
High Yield ◽  
Purification Process ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Highly Active ◽  
The One ◽  
Operational Simplicity

A metal- and catalyst-free reductive alkylation protocol for the one-pot synthesis of 5-monoalkylbarbiturates from barbituric acids and aldehydes using the in situ generated chemoselective reducing agent 2-phenyl-2,3-dihydrobenzo[d]thiazole from 2-aminothiophenol and benzaldehyde is described. The notable advantages of the protocol are operational simplicity, mild reaction conditions, high yield, short reaction time, and simple workup and purification process which make it highly attractive.

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