4.6 Article

Development of magnetic Fe3O4-chitosan immobilized Cu(II) Schiff base catalyst: An efficient and reusable catalyst for microwave assisted one-pot synthesis of propargylamines via A3 coupling

Related references

Note: Only part of the references are listed.
Article Chemistry, Organic

Cascade synthesis of indolizines and pyrrolo[1,2-a]pyrazines from 2-formyl-1-propargylpyrroles

Carlos H. Escalante et al.

Summary: The straightforward synthesis of indolizines and pyrrolo[1,2-a]pyrazines was achieved through a cascade condensation/cyclization/aromatization reaction. The reaction proceeded satisfactorily under basic conditions, providing high yields of the desired products. N-Allenyl-2-formylpyrroles were found to be more reactive substrates compared to 2-formyl-N-propargylpyrroles in this reaction system.

ORGANIC & BIOMOLECULAR CHEMISTRY (2022)

Article Multidisciplinary Sciences

Architecture engineering of nanostructured catalyst via layer-by-layer adornment of multiple nanocatalysts on silica nanorod arrays for hydrogenation of nitroarenes

Kootak Hong et al.

Summary: Considering both the catalytically active species and the host materials, efficient strategies for the design of nanostructured catalysts can be achieved. In this study, a physical method is presented to allow the controlled design of functional nanocatalysts through layer-by-layer decoration of nanoparticles on silica nanorods. The resulting catalyst exhibits excellent efficiency and easy separation.

SCIENTIFIC REPORTS (2022)

Article Chemistry, Physical

Magnetic silica surface functionalized palladium catalyst: A modular approach for C-C cross-coupling reactions in water

Kamrul Hasan et al.

Summary: A novel Pd immobilized catalyst was prepared via surface modification of magnetic silica and proved to be highly efficient and recyclable for the Suzuki coupling reaction in aqueous medium. The catalyst showed excellent catalytic performance for a wide range of aryl halides and could be reused for up to six cycles with 97% efficiency.

APPLIED SURFACE SCIENCE (2022)

Review Environmental Sciences

Cerium functionalized graphene nano-structures and their applications; A review

Fatemeh Nemati et al.

Summary: Graphene-based nanomaterials have shown great potential in various applications due to their remarkable properties. Functionalized graphene nanocomposites have advantages in increasing surface area and porosity, improving adsorption capacities, reducing adsorption energy barrier, and preventing agglomeration. Combining cerium structures with graphene networks has been widely investigated to enhance the properties of the composite. This research reviews the recent developments in cerium functionalized graphene derivatives and their industrial applications, providing comprehensive information on these nanonetworks. The applications of functionalized graphene derivatives are successfully summarized. This systematic review study has the potential to pave the way for scientific research in material science and various applications.

ENVIRONMENTAL RESEARCH (2022)

Article Materials Science, Multidisciplinary

Nanocomposites of MoS2 nanoparticles with carboxyl-functionalized carbon nanotubes and borocarbonitrides nanosheets, and their electrocatalytic hydrogen evolution reaction activity

K. Pramoda et al.

Summary: A facile method to generate MoS2/SWCNT and MoS2/BCN composites by mixing MoS2 nanoparticle dispersion with carboxyl-functionalized SWCNT and BCN in water is reported. The composites show higher electro-catalytic H-2 evolution performance compared to the individual constituents, with the activity increasing with the proportion of MoS2. Among the prepared catalysts, MoS2-SWCNT with a 3:1 ratio of MoS2 and SWCNT exhibits highly positive onset potential and remarkable stability in acid electrolyte.

MATERIALS RESEARCH BULLETIN (2022)

Review Chemistry, Applied

A3 Coupling Reaction in the Synthesis of Heterocyclic Compounds

Yulia Volkova et al.

Summary: This review provides a general overview of the utility of A(3) coupling in the synthesis of heterocycles, highlighting the variety of compounds that can be directly accessed from single reactions. The diverse methodologies for the synthesis of N,O,S-heterocycles based on A(3) coupling are presented, emphasizing the influence of reaction conditions and the use of additional reagents on the outcome of the transformations.

ADVANCED SYNTHESIS & CATALYSIS (2021)

Article Materials Science, Ceramics

Magnetic Fe3O4@SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants

Gang Su et al.

Summary: A novel magnetic Fe3O4@SiO2@BiFeO3/rGO composite was successfully synthesized via a hydrothermal method, showing excellent performance in photocatalytic degradation of organic pollutants under visible light, as well as remarkable recyclability and stability.

CERAMICS INTERNATIONAL (2021)

Review Chemistry, Physical

Recent Advances in Microwave-Assisted Copper-Catalyzed Cross-Coupling Reactions

Younis Baqi

Summary: One of the most challenging tasks in organic synthesis is to achieve cross-coupling reactions furnishing carbon-carbon and carbon-heteroatom bonds using copper catalysis. In recent years, the use of microwave-assisted copper catalyzed cross-coupling reactions has significantly improved reaction efficiency and yield.

CATALYSTS (2021)

Article Chemistry, Multidisciplinary

An Environmentally Benign Solid Acid Nanocatalyst for the Green Synthesis of Carboxylic Acid Ester

Irshad Ahmad et al.

Summary: A sulfonic acid-functionalized silica nanospheres (SAFSNS) catalyst was synthesized, replacing toxic liquid acids for green esterification of carboxylic acids. The catalyst exhibited good catalytic activity and stability at 100 degrees Celsius.

CHEMISTRYSELECT (2021)

Article Chemistry, Multidisciplinary

Magnetic AgNPs/Fe3O4@chitosan/PVA nanocatalyst for fast one-pot green synthesis of propargylamine and triazole derivatives

Kousar Ghasemi et al.

Summary: A new green magnetic nanocatalyst was developed for the efficient one-pot synthesis of propargylamine and triazole derivatives, offering high yields and easy separation of the catalyst, demonstrating excellent environmental-friendly properties.

NEW JOURNAL OF CHEMISTRY (2021)

Review Chemistry, Multidisciplinary

Silver-catalysed C-H bond activation: a recent review

Sankaran Radhika et al.

Summary: Transition metal catalysed C-H activations are efficient, simple, mild, cost-effective, and stereoselective, with many being environmentally sustainable transformations. Silver has shown outstanding advancements in this field, leading to the development of greener protocols for C-H functionalization.

NEW JOURNAL OF CHEMISTRY (2021)

Article Chemistry, Multidisciplinary

Direct synthesis of pentasubstituted pyrroles and hexasubstituted pyrrolines from propargyl sulfonylamides and allenamides

Changqing Ye et al.

Summary: This study presents a metal-free method for the synthesis of pentasubstituted pyrroles and hexasubstituted pyrrolines with different substituents and a free amino group. The approach complements previous methods and supports the expansion of the toolbox for synthesizing valuable, but previously inaccessible, highly substituted pyrroles and pyrrolines. Mechanistic studies have been conducted to elucidate the reaction pathway.

CHEMICAL SCIENCE (2021)

Article Chemistry, Organic

Rh(iii)-Catalyzed olefination to build diverse oxazole derivatives from functional alkynes

Yuan He et al.

Summary: In this study, a novel Rh(iii)-catalyzed olefination reaction using oxazole as a directing group has been realized, leading to the generation of diverse oxazole skeleton derivatives with long chain alkenyls in moderate to good yields. The reaction showed tolerance towards various functional groups, making it potentially valuable in the construction of diverse compounds.

ORGANIC & BIOMOLECULAR CHEMISTRY (2021)

Review Chemistry, Multidisciplinary

Metal-free multicomponent approach for the synthesis of propargylamine: a review

Sujit Ghosh et al.

Summary: Propargylamines are important alkyne-coupled amine compounds used in heterocyclic chemistry and pharmaceuticals, often synthesized through A3 coupling. While metal-catalyzed methods are commonly used, there is a growing interest in metal-free techniques for their synthesis. This review article discusses the comprehensive study of metal-free protocols in propargylamine synthesis.

RSC ADVANCES (2021)

Article Chemistry, Multidisciplinary

1D Fe3O4@CuSiO3 composites catalyzed decarboxylative A3-coupling for propargylamine synthesis

Fang Wang et al.

CHINESE CHEMICAL LETTERS (2020)

Review Chemistry, Organic

Recent Advances in Reactions of Propargylamines

Xia Sheng et al.

SYNTHESIS-STUTTGART (2020)

Article Chemistry, Physical

Chitosan modified Cu2O nanoparticles with high catalytic activity for p-nitrophenol reduction

Yan Guo et al.

APPLIED SURFACE SCIENCE (2019)

Review Chemistry, Inorganic & Nuclear

The use of chitosan-based metal catalysts in organic transformations

Arpad Molnar

COORDINATION CHEMISTRY REVIEWS (2019)

Review Chemistry, Organic

Synthesis of five-membered N-heterocycles using silver metal

Navjeet Kaur et al.

SYNTHETIC COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

Iron oxide-supported copper oxide nanoparticles catalyzed synthesis of propargyl amine derivatives via multicomponent approach

Gopinath Shirole et al.

RESEARCH ON CHEMICAL INTERMEDIATES (2016)

Article Chemistry, Physical

Green synthesis of CuO nanoparticles by aqueous extract of Anthemis nobilis flowers and their catalytic activity for the A3 coupling reaction

Mahmoud Nasrollahzadeh et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2015)

Article Chemistry, Multidisciplinary

Aldehyde-alkyne-amine (A3) coupling catalyzed by a highly efficient dicopper complex

Hong-Bin Chen et al.

RSC ADVANCES (2015)

Article Chemistry, Physical

The Rise of Magnetically Recyclable Nanocatalysts

Manoj B. Gawande et al.

CHEMCATCHEM (2014)

Review Chemistry, Multidisciplinary

Fast-Growing Field of Magnetically Recyclable Nanocatalysts

Dong Wang et al.

CHEMICAL REVIEWS (2014)

Review Chemistry, Multidisciplinary

Magnetic nanomaterials in catalysis: advanced catalysts for magnetic separation and beyond

Liane M. Rossi et al.

GREEN CHEMISTRY (2014)

Review Chemistry, Multidisciplinary

Homogeneous and heterogeneous catalysts for multicomponent reactions

Maria Jose Climent et al.

RSC ADVANCES (2012)

Review Chemistry, Multidisciplinary

Engineering Metal Organic Frameworks for Heterogeneous Catalysis

A. Corma et al.

CHEMICAL REVIEWS (2010)

Article Materials Science, Multidisciplinary

Control synthesis of magnetic Fe3O4-chitosan nanoparticles under UV irradiation in aqueous system

Lian-ying Zhang et al.

CURRENT APPLIED PHYSICS (2010)

Review Chemistry, Multidisciplinary

Reactions of C-H bonds in water

Clara I. Herrerias et al.

CHEMICAL REVIEWS (2007)

Article Chemistry, Multidisciplinary

Monodisperse magnetic single-crystal ferrite microspheres

H Deng et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2005)

Article Chemistry, Multidisciplinary

A highly efficient three-component coupling of aldehyde, alkyne, and amines via C-H activation catalyzed by gold in water

CM Wei et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2003)

Article Chemistry, Multidisciplinary

Enantioselective direct-addition of terminal alkynes to imines catalyzed by copper(I)pybox complex in water and in toluene

CM Wei et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2002)