DBU-functionalized MCM-41-coated nanosized hematite (DBU-F-MCM-41-CNSH): a new magnetically separable basic nanocatalyst for the diastereoselective one-pot four-component synthesis of 2-(N-carbamoylacetamide)-substituted 2,3-dihydrothiophenes

2019 ◽  
Vol 43 (47) ◽  
pp. 18559-18570 ◽  
Author(s):  
Reza Kordnezhadian ◽  
Mohsen Shekouhy ◽  
Ali Khalafi-Nezhad
Keyword(s):  
Solid Catalyst ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Magnetically Separable ◽  
Mcm 41

Conversion of DBU from a nonrecoverable liquid base to a magnetically separable solid catalyst and its application for the diastereoselective multicomponent synthesis of 2-(N-carbamoylacetamide)-substituted 2,3-dihydrothiophenes.

Synthesis, Characterization and Application of N,N-Dimethyl-N-Sulfoethan Ammonium tetra-Chloro Aluminate: A Novel micro-Heterogeneous Cata-lyst for Synthesis of tri-Arylmethanes

2020 ◽  
Vol 17 ◽  
Author(s):  
Saeid Azimi ◽  
Niloofar Mohamadighader
Keyword(s):  
Ionic Liquid ◽  
Heterogeneous Catalyst ◽  
Mass Spectroscopy ◽  
Aromatic Aldehydes ◽  
Solid Catalyst ◽  
Sem Images ◽  
One Pot ◽  
Acidic Catalyst ◽  
Eds Analysis ◽  
Ft Ir

Abstract: A new solid catalyst was synthesized from an ionic liquid and heterogenised by changing anion reaction. The new heterogeneous acidic catalyst was characterized by SEM images, EDS analysis, AFM images, Ft-IR, HNMR, 13CNMR and Mass Spectroscopy. It was applied to synthesis of tri-arylmethanes throughout one-pot tri-component reactions among aromatic aldehydes, N,N-dimethylaniline and other carbonic nucleophiles such as anisole and indole. Hence, synthesis of convenient and inexpensive micro-heterogeneous catalyst was introduced, the efficiency of which was confirmed. Also, various useful products were synthesized throughout this simple and clean procedure.

Sulfamic Acid-catalyzed One-pot Multicomponent Synthesis of 5-phenyl-2- thioxo-1,2,3,5-tetrahydro-4H-pyrimido[4,5-d][1,3]thiazolo[3,2-a]pyrimidin- 4-ones

2017 ◽  
Vol 3 (3) ◽  
pp. 227-234 ◽  
Author(s):  
Sunetra Jadhav ◽  
Ajinkya Patravale ◽  
Reshma Patil ◽  
Digambar Kumbhar ◽  
Vishram Karande ◽  
...  
Keyword(s):  
Sulfamic Acid ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Acid Catalyzed

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.

ChemInform Abstract: Studies on Novel Synthetic Methodologies. Part 128. One-Pot Multicomponent Synthesis of β-Acetamidoketones Catalyzed by pTSA.

ChemInform ◽  
2008 ◽  
Vol 39 (6) ◽  
Author(s):  
Biswanath Das ◽  
Kongara Ravinder Reddy ◽  
Yallamalla Srinivas ◽  
Rathod Aravind Kumar
Keyword(s):  
Multicomponent Synthesis ◽  
One Pot ◽  
Synthetic Methodologies

InCl3 mediated one-pot multicomponent synthesis, anti-microbial, antioxidant and anticancer evaluation of 3-pyranyl indole derivatives

2010 ◽  
Vol 20 (17) ◽  
pp. 5054-5061 ◽  
Author(s):  
Neelakandan Vidhya Lakshmi ◽  
Prakasam Thirumurugan ◽  
K.M. Noorulla ◽  
Paramasivan.T. Perumal
Keyword(s):  
Indole Derivatives ◽  
Multicomponent Synthesis ◽  
One Pot
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