Mn doped ZrO2 as a green, efficient and reusable heterogeneous catalyst for the multicomponent synthesis of pyrano[2,3-d]-pyrimidine derivatives

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37360-37366 ◽  
Author(s):  
Surya Narayana Maddila ◽  
Suresh Maddila ◽  
Werner E. van Zyl ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Heterogeneous Catalyst ◽  
Efficient Method ◽  
Multicomponent Synthesis ◽  
Pyrimidine Derivatives ◽  
One Pot ◽  
The One ◽  
Mn Doped

A simple and an efficient method has been developed for the one-pot multicomponent synthesis of pyrano[2,3-d]-pyrimidine derivatives.

ChemInform Abstract: Mn Doped ZrO2as a Green, Efficient and Reusable Heterogeneous Catalyst for the Multicomponent Synthesis of Pyrano[2,3-d]-pyrimidine Derivatives.

ChemInform ◽  
2015 ◽  
Vol 46 (36) ◽  
pp. no-no
Author(s):  
Surya Narayana Maddila ◽  
Suresh Maddila ◽  
Werner E. van Zyl ◽  
Sreekantha B. Jonnalagadda
Keyword(s):  
Heterogeneous Catalyst ◽  
Multicomponent Synthesis ◽  
Pyrimidine Derivatives ◽  
Mn Doped

scholarly journals Clean one-pot multicomponent synthesis of pyrans using a green and magnetically recyclable heterogeneous nanocatalyst

SynOpen ◽  
2021 ◽  
Author(s):  
Mina Ghassemi ◽  
Ali Maleki
Keyword(s):  
Room Temperature ◽  
Significant Loss ◽  
Copper Ferrite ◽  
Multicomponent Synthesis ◽  
Thermo Gravimetric ◽  
Sem Images ◽  
One Pot ◽  
Three Component Reaction ◽  
Ft Ir ◽  
The One

Copper ferrite (CuFe2O4) magnetic nanoparticles (MNPs) were synthesized via thermal decomposition method and applied as a reusable and green catalyst in the synthesis of functionalized 4H-pyran derivatives using malononitrile, an aromatic aldehyde and a β-ketoester in ethanol at room temperature. Then it was characterized by Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX) analysis, scanning electron microscopy (SEM) images, thermo gravimetric and differential thermo gravimetric (TGA/DTG) analysis. The catalyst was recovered from the reaction mixture by applying an external magnet and decanting the mixture. Recycled catalyst was reused for several times without significant loss in its activity. Running the one-pot three-component reaction at room temperature, no use of eternal energy source and using a green solvent provide benign, mild, and environmentally friendly reaction conditions; as well, ease of catalyst recovering, catalyst recyclability, no use of column chromatography and good to excellent yields are extra advantages of this work.

ZrOCl2·8H2O: an efficient Lewis acid catalyst for the one-pot multicomponent synthesis of β-acetamido ketones

Tetrahedron ◽  
2006 ◽  
Vol 62 (17) ◽  
pp. 4059-4064 ◽  
Author(s):  
Rina Ghosh ◽  
Swarupananda Maiti ◽  
Arijit Chakraborty ◽  
Santu Chakraborty ◽  
Alok K. Mukherjee
Keyword(s):  
Lewis Acid ◽  
Acid Catalyst ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Lewis Acid Catalyst ◽  
The One

scholarly journals NiO nanoparticles: A highly efficient catalyst for the one-pot three-component synthesis of pyrano [2, 3-d] pyrimidine derivatives in green media.

2021 ◽  
Vol 18 ◽  
Author(s):  
Ellahe Sabbaghnasab ◽  
Enayatollah Sheikhhosseini
Keyword(s):  
Barbituric Acid ◽  
Nio Nanoparticles ◽  
Pyrimidine Derivatives ◽  
One Pot ◽  
Efficient Catalyst ◽  
Environmental Friendliness ◽  
Short Reaction Time ◽  
Pyrimidine Synthesis ◽  
Simple Processing ◽  
The One

: NiO nanoparticles are utilized to effectively strengthen annulated pyrano [2, 3- d] pyrimidine synthesis through primary Knoevenagel, following Micheal and ultimate heterocyclization reactions of aldehyde, malononitrile, and barbituric acid. The characteristics of NiO nanoparticles are identified using advanced techniques, such as IR, UV, EDX, XRD, SEM, and TEM. The nano-NiO particles are mostly below < 100 nm in size with uniform spherical shapes. The adopted approach is advantages thanks to its simple processing, relatively short reaction time, often good to high average yields, convenient workability, and environmental friendliness.

Sulfated Tin Oxide: A Convenient Heterogeneous Catalyst for the Synthesis of 4-Arylmethylidene-3-substituted-isoxazol-5(4H)-ones

2021 ◽  
Vol 18 ◽  
Author(s):  
Nitishkumar S. Kaminwar ◽  
Sunil U. Tekale ◽  
Srinivas L. Nakkalwar ◽  
Rajendra P. Pawar
Keyword(s):  
Heterogeneous Catalyst ◽  
Tin Oxide ◽  
Heterocyclic Compounds ◽  
Biological Activities ◽  
Hydroxylamine Hydrochloride ◽  
One Pot ◽  
Easy Method ◽  
Three Component Reaction ◽  
Wide Range ◽  
The One

: Synthesis of isoxazole structural heterocyclic compounds is important due to their wide range of biological activities. In the present article, we report a convenient and easy method for the synthesis of 4-arylmethylidene-3-substituted-isoxazol-5(4H)-ones by the one-pot three-component reaction of aldehydes, β-keto ester, and hydroxylamine hydrochloride cat-alyzed by sulfated tin oxide as a heterogeneous catalyst.

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