ChemInform Abstract: Nano n-Propylsulfonated γ-Fe2O3: A Novel Magnetically Recyclable Heterogeneous Catalyst for the Efficient Synthesis of Bis(pyrazolyl)methanes in Water.

ChemInform ◽  
2014 ◽  
Vol 45 (8) ◽  
pp. no-no
Author(s):  
Sara Sobhani ◽  
Zahra Pakdin-Parizi ◽  
Razieh Nasseri
Keyword(s):  
Heterogeneous Catalyst ◽  
Efficient Synthesis ◽  
Recyclable Heterogeneous Catalyst

Efficient synthesis of pyrido[2,3-d]pyrimidine-7-carboxylic acids catalyzed by a TiO2/SiO2 nanocomposite in aqueous media at room temperature

2018 ◽  
Vol 73 (9) ◽  
pp. 641-645 ◽  
Author(s):  
Sepehr Sadegh-Samiei ◽  
Shahrzad Abdolmohammadi
Keyword(s):  
Heterogeneous Catalyst ◽  
Carboxylic Acids ◽  
Room Temperature ◽  
Aqueous Media ◽  
Reaction Times ◽  
Molar Ratio ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Moderate Reaction ◽  
Recyclable Heterogeneous Catalyst

AbstractA novel and efficient synthesis of eight 5-aryl-1,3-dimethyl-2,4-dioxo-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-7-carboxylic acids using a TiO2/SiO2 nanocomposite with a molar ratio of 1:1 as a recyclable heterogeneous catalyst is described. The desired products, five of which are new, are formed in short reaction times (2–3 h) with high to excellent yields (94%–98%) under very moderate reaction conditions (room temperature, aqueous media).

A nanocrystalline CdS thin film as a heterogeneous, recyclable catalyst for effective synthesis of dihydropyrimidinones and a new class of carbazolyl dihydropyrimidinones via an improved Biginelli protocol

2019 ◽  
Vol 43 (27) ◽  
pp. 10989-11002 ◽  
Author(s):  
K. Venkatapathy ◽  
C. J. Magesh ◽  
G. Lavanya ◽  
P. T. Perumal ◽  
R. Sathishkumar
Keyword(s):  
Thin Film ◽  
Heterogeneous Catalyst ◽  
Recyclable Catalyst ◽  
Efficient Synthesis ◽  
New Class ◽  
Cds Thin Film ◽  
Effective Synthesis ◽  
Recyclable Heterogeneous Catalyst

An improved Biginelli protocol for the efficient synthesis of a new class of carbazolyl dihydropyrimidinones mediated by CdS thin film nanoparticles deposited on the inner walls of a glass reactor as a recyclable, heterogeneous catalyst.

Niobic Acid as a Recyclable Heterogeneous Catalyst for the Solvent-Free Synthesis of Substituted Benzimidazoles

2013 ◽  
Vol 1 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Beatriz Vieira ◽  
Angelita Barcellos ◽  
Ricardo Schumacher ◽  
Eder Lenardao ◽  
Diego Alves
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Niobic Acid ◽  
Recyclable Heterogeneous Catalyst ◽  
Solvent Free Synthesis

Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis

2012 ◽  
Vol 708-709 ◽  
pp. 25-30 ◽  
Author(s):  
Kioumars Aghapoor ◽  
Leila Ebadi-Nia ◽  
Farshid Mohsenzadeh ◽  
Mina Mohebi Morad ◽  
Yadollah Balavar ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Recyclable Heterogeneous Catalyst
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