scholarly journals A mineralogically-inspired silver–bismuth hybrid material: an efficient heterogeneous catalyst for the direct synthesis of nitriles from terminal alkynes

2018 ◽  
Vol 20 (5) ◽  
pp. 1007-1019 ◽  
Author(s):  
Sándor B. Ötvös ◽  
Rebeka Mészáros ◽  
Gábor Varga ◽  
Marianna Kocsis ◽  
Zoltán Kónya ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Hybrid Material ◽  
Direct Synthesis ◽  
Terminal Alkynes ◽  
Efficient Heterogeneous Catalyst

A silver-containing hybrid material is reported as an effective heterogeneous catalyst for the direct synthesis of organic nitriles from terminal alkynes.

scholarly journals Conversion of CO2 into Chloropropene Carbonate Catalyzed by Iron (II) Phthalocyanine Hypercrosslinked Porous Organic Polymer

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4598
Author(s):  
Eva M. Maya ◽  
Antonio Valverde-González ◽  
Marta Iglesias
Keyword(s):  
Heterogeneous Catalyst ◽  
Direct Synthesis ◽  
Cyclic Carbonate ◽  
Organic Polymer ◽  
Iron Loading ◽  
Reaction Conditions ◽  
Porous Organic Polymer ◽  
Commercial Iron ◽  
Excellent Stability ◽  
Efficient Heterogeneous Catalyst

Commercial iron (II) phthalocyanine (FePc) was knitted with biphenyl using a Friedel–Crafts reaction to yield a micro-meso porous organic polymer (FePc-POP) with a specific surface area of 427 m2/g and 5.42% of iron loading. This strategy allowed for the direct synthesis of a heterogeneous catalyst from an iron containing monomer. The catalytic system, formed by the knitted polymer containing FePc and DMAP (4-dimethylamino pyridine) as base, results in an efficient heterogeneous catalyst in the cycloaddition of CO2 to epichlorohydrin to selectively obtain the corresponding cyclic carbonate. Thus, a TON (mmol substrate converted/mmol catalysts used) value of 2700 was reached in 3 h under mild reaction conditions (solvent free, 90 °C, 3 bar of CO2). The catalyst does not exhibit leaching during the reactions, which was attributed to the excellent stability of the metal in the macrocycle.

Zeolite Y nanoparticle assemblies with high activity in the direct hydration of terminal alkynes

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 69822-69827 ◽  
Author(s):  
Shuling Xu ◽  
Zhi Yun ◽  
Yu Feng ◽  
Ting Tang ◽  
Zhongxue Fang ◽  
...  
Keyword(s):  
High Activity ◽  
Heterogeneous Catalyst ◽  
Zeolite Y ◽  
Nanoparticle Assembly ◽  
Terminal Alkynes ◽  
Macroporous Structure ◽  
Nanoparticle Assemblies ◽  
Highly Efficient ◽  
Efficient Heterogeneous Catalyst

A strong acidic zeolite Y nanoparticle assembly (HNANO-Y) with a micro–meso–macroporous structure was synthesized and used as a highly efficient heterogeneous catalyst for the hydration of alkynes to prepare ketone compounds.

Titania-Supported Iridium Subnanoclusters as an Efficient Heterogeneous Catalyst for Direct Synthesis of Quinolines from Nitroarenes and Aliphatic Alcohols

2011 ◽  
Vol 123 (43) ◽  
pp. 10398-10402 ◽  
Author(s):  
Lin He ◽  
Jian-Qiang Wang ◽  
Ya Gong ◽  
Yong-Mei Liu ◽  
Yong Cao ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Direct Synthesis ◽  
Aliphatic Alcohols ◽  
Efficient Heterogeneous Catalyst

Pre-carbonized nitrogen-rich polytriazines for the controlled growth of silver nanoparticles: catalysts for enhanced CO2 chemical conversion at atmospheric pressure

2021 ◽  
Author(s):  
Jian Liu ◽  
xiaoyi zhang ◽  
bingyan wen ◽  
yipei li ◽  
jingjing wu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Atmospheric Pressure ◽  
Chemical Conversion ◽  
High Catalytic Activity ◽  
Controlled Growth ◽  
Co2 Conversion ◽  
Terminal Alkynes ◽  
Efficient Heterogeneous Catalyst

High catalytic activity and sufficient durability are two unavoidable key indexes of an efficient heterogeneous catalyst for the direct carboxylation of terminal alkynes with CO2 conversion. Nitrogen-rich covalent triazine frameworks...

Nickel-Decorated Graphene Oxide/Polyaniline Hybrid: A Robust and Highly Efficient Heterogeneous Catalyst for Hydrogenation of Terminal Alkynes

2015 ◽  
Vol 54 (45) ◽  
pp. 11493-11499 ◽  
Author(s):  
Vineeta Panwar ◽  
Arvind Kumar ◽  
Raghuvir Singh ◽  
Piyush Gupta ◽  
Siddharth S. Ray ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Heterogeneous Catalyst ◽  
Terminal Alkynes ◽  
Highly Efficient ◽  
Efficient Heterogeneous Catalyst
Sign in / Sign up

Export Citation Format

Share Document