A trifunctional mesoporous silica-based, highly active catalyst for one-pot, three-step cascade reactions

2015 ◽  
Vol 51 (40) ◽  
pp. 8496-8499 ◽  
Author(s):  
Ankush V. Biradar ◽  
Vijayshinha S. Patil ◽  
Prakash Chandra ◽  
Dhananjay S. Doke ◽  
Tewodros Asefa
Keyword(s):  
Mesoporous Silica ◽  
Active Catalyst ◽  
Cascade Reactions ◽  
Sulphonic Acid ◽  
One Pot ◽  
Pd Nanoparticle ◽  
Highly Active

We report the synthesis of a trifunctional catalyst containing amine, sulphonic acid and Pd nanoparticle catalytic groups anchored on the pore walls of SBA-15. The catalyst efficiently catalyzes one-pot three-step cascade reactions.

Potassium phosphate-catalyzed one-pot synthesis of 3-aryl-2-oxazolidinones from epoxides, amines, and atmospheric carbon dioxide

2017 ◽  
Vol 19 (3) ◽  
pp. 803-808 ◽  
Author(s):  
Ue Ryung Seo ◽  
Young Keun Chung
Keyword(s):  
Carbon Dioxide ◽  
Ambient Temperature ◽  
Atmospheric Carbon Dioxide ◽  
Active Catalyst ◽  
Potassium Phosphate ◽  
One Pot ◽  
One Pot Synthesis ◽  
Highly Active ◽  
Atmospheric Carbon

Potassium phosphate was found to be a highly active catalyst in the three-component cycloaddition of amines, epoxides, and carbon dioxide in DMF at ambient temperature to form 3-aryl-2-oxazolidinones.

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.

scholarly journals Pd/TOMPP-catalyzed telomerization of 1,3-butadiene: From biomass-based substrates to new mechanistic insights

2012 ◽  
Vol 84 (8) ◽  
pp. 1713-1727 ◽  
Author(s):  
Peter J. C. Hausoul ◽  
Pieter C. A. Bruijnincx ◽  
Bert M. Weckhuysen ◽  
Robert J. M. Klein Gebbink
Keyword(s):  
Catalyst Deactivation ◽  
Active Catalyst ◽  
Synthesis Method ◽  
Catalyst System ◽  
Reaction Pathways ◽  
Mechanistic Studies ◽  
One Pot ◽  
Highly Active ◽  
System A ◽  
Insight Into

Studies aimed at synthesizing surfactants from biomass-based feedstocks using Pd-catalyzed telomerization of 1,3-butadiene resulted in the development of a highly active catalyst system. A ligand screening was performed, and Pd/tris(2-methoxyphenyl)phosphine (TOMPP) was identified as the most promising catalyst. A solvent- and base-free protocol was developed, which allows efficient and selective conversion of a wide variety of polyol substrates (e.g., glycerol, diols, carbohydrates, and sugar alcohols). In the case of hemi-acetal bearing sugars, catalyst deactivation was observed and mechanistic studies showed that extensive formation of ligand-derived phosphonium species depleted the amount of available ligand. Stoichiometric coordination reactions gave insight into the phosphine alkylation mechanism and demonstrated the reversibility of the observed reaction. A simple and efficient one-pot synthesis method was developed for the preparation of [Pd((1-3,7,8η)-(E)-octa-2,7-dien-1-yl)(PR3)]+ complexes, which are key reactive intermediates. Based on these studies, an extended telomerization mechanism is proposed, which accounts for the formation of ligand-derived phosphonium species and the reversibility of reaction pathways.

Ultra-small gold nanoparticles immobilized on mesoporous silica/graphene oxide as highly active and stable heterogeneous catalysts

2015 ◽  
Vol 51 (21) ◽  
pp. 4398-4401 ◽  
Author(s):  
Li Peng ◽  
Jianling Zhang ◽  
Shuliang Yang ◽  
Buxing Han ◽  
Xinxin Sang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Mesoporous Silica ◽  
Heterogeneous Catalysts ◽  
Synthetic Route ◽  
One Pot ◽  
Highly Active

The ultra-small gold nanoparticles immobilized on the mesoporous SiO2/graphene oxide (GO) support were formed via a one-pot synthetic route.

scholarly journals Recyclable Pd/CuFe2O4 nanowires: a highly active catalyst for C–C couplings and synthesis of benzofuran derivatives

RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 21030-21039 ◽  
Author(s):  
Bhairi Lakshminarayana ◽  
Jhonti Chakraborty ◽  
G. Satyanarayana ◽  
Ch. Subrahmanyam
Keyword(s):  
Active Catalyst ◽  
Cross Coupling ◽  
Sonogashira Coupling ◽  
One Pot ◽  
One Pot Synthesis ◽  
Highly Active

Efficient heterogeneous Pd/CuFe2O4 nanowires which catalyze cross coupling transformations are described. The protocol is applied to a one-pot synthesis of benzofurans via Sonogashira coupling and an intramolecular etherification sequence.

One-pot pyrolysis synthesis of highly active Ru/RuOX nanoclusters for water splitting

Nano Research ◽  
2021 ◽  
Author(s):  
Fengyuan Zhu ◽  
Jiangyan Xue ◽  
Lingjian Zeng ◽  
Jingrui Shang ◽  
Shuanglong Lu ◽  
...  
Keyword(s):  
Water Splitting ◽  
One Pot ◽  
Highly Active ◽  
Pyrolysis Synthesis

Influence of metal oxide and heteropoly tungustate location in mesoporous silica towards catalytic transfer hydrogenation of furfural to γ-valerolactone

2021 ◽  
Author(s):  
Bolla Srinivasarao ◽  
Yogita Y ◽  
Dhana Lakshmi Darsi ◽  
Krishna Kumari Pamula ◽  
N. Lingaiah
Keyword(s):  
Mesoporous Silica ◽  
Metal Oxide ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
One Pot ◽  
Catalytic Transfer

One pot conversion of furfural to -valerolactone by transfer hydrogenation has been achieved over bifunctional Zr and TPA located in mesoporous silica catalysts. Different catalysts with TPA and ZrO2 located...

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