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.

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).

scholarly journals Superparamagnetic nanoparticles as a recyclable catalyst: a new access to phenol esters via cross dehydrogenative coupling reactions

RSC Advances ◽  
2017 ◽  
Vol 7 (88) ◽  
pp. 55756-55766 ◽  
Author(s):  
Chung K. Nguyen ◽  
Hoang H. Vu ◽  
Ha V. Dang ◽  
Ngon N. Nguyen ◽  
Nhan T. H. Le ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Direct Synthesis ◽  
Recyclable Catalyst ◽  
Superparamagnetic Nanoparticles ◽  
Coupling Reactions ◽  
Chemical Structures ◽  
Dehydrogenative Coupling ◽  
Recyclable Heterogeneous Catalyst

CuFe2O4 superparamagnetic nanoparticles were utilized as a recyclable heterogeneous catalyst for the direct synthesis of chemical structures containing both phenol ester and benzothiazole moieties via cross dehydrogenative coupling reactions.

Facile and Efficient Synthesis of New Class of Imidazole Derivatives via One-Pot Multicomponent Reactions in Water

2013 ◽  
Vol 16 (10) ◽  
pp. 788-790
Author(s):  
Zinatossadat Hossaini ◽  
Samereh Seyfi ◽  
Faramarz Rostami-Charati ◽  
Mehdi Ghambarian
Keyword(s):  
Multicomponent Reactions ◽  
Efficient Synthesis ◽  
One Pot ◽  
Imidazole Derivatives ◽  
New Class

Electrical Properties of RF Sputtered CdTe/CdS Thin Film Solar Cells

2009 ◽  
Vol 2 (1) ◽  
pp. 110-112 ◽  
Author(s):  
Sheeja Krishnan ◽  
Ganesh Sanjeev ◽  
Manjunatha Pattabi ◽  
X. Mathew
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electrical Properties ◽  
Thin Film Solar Cells ◽  
Cds Thin Film

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
Sign in / Sign up

Export Citation Format

Share Document