scholarly journals Catalytic Synthesis of Salicylate Esters over Cordierite Honeycomb Coated with Mo (VI)/ZrO<sub>2</sub>

2013 ◽  
Vol 02 (02) ◽  
pp. 39-41 ◽  
Author(s):  
Manjunatha Shyamsundar ◽  
Sathgatta Z. M. Shamshuddin ◽  
Nabisab Mujawar Mubarak ◽  
Srinivas R. Prathap
Keyword(s):  
Catalytic Synthesis ◽  
Cordierite Honeycomb ◽  
Salicylate Esters

Catalytic Synthesis of Cyclic Guanidines via Hydrogen Atom Transfer and Radical-Polar Crossover

2020 ◽  
Author(s):  
Shunya Ohuchi ◽  
Hiroki Koyama ◽  
Hiroki Shigehisa
Keyword(s):  
Hydrogen Atom ◽  
Functional Group ◽  
Hydrogen Atom Transfer ◽  
Catalytic Synthesis ◽  
Membered Ring ◽  
Biologically Active ◽  
Atom Transfer ◽  
Powerful Method ◽  
Protective Groups ◽  
The Common

A catalytic synthesis of cyclic guanidines, which are found in many biologically active compounds and natu-ral products, was developed, wherein transition-metal hydrogen atom transfer and radical-polar crossover were employed. This mild and functional-group tolerant process enabled the cyclization of alkenyl guanidines bearing common protective groups, such as Cbz and Boc. This powerful method not only provided the common 5- and 6-membered rings but also an unusual 7-membered ring. The derivatization of the products afforded various heterocycles. We also investigated the se-lective cyclization of mono-protected or hetero-protected (TFA and Boc) alkenyl guanidines and their further derivatiza-tions.

Synthesis of 3,4-Dihydropyrimidin-2(1H)-one Derivatives Using Activated Montmorillonite as Catalyst

2018 ◽  
Vol 16 (1) ◽  
pp. 59-65
Author(s):  
Sofiane Mekki ◽  
Lahcen Krabia ◽  
Saleh Mahmoud Saleh Mohamed ◽  
Salima Saidi-Besbes
Keyword(s):  
Catalytic Synthesis ◽  
Montmorillonite Clays

An efficient catalytic synthesis of 4-aryl-3,4-dihydropyrimidine-2(1H)-one derivatives using copper (II), iron (III) and zinc (II) exchanged montmorillonite clays as a catalyst is described. The desired products were obtained in good yields.

Catalytic Synthesis of Bulk Hydrophilic Acetaldehyde-Modified Polyamide 46

2014 ◽  
Vol 11 (2) ◽  
pp. 288-294
Author(s):  
Hamidreza Barghi ◽  
Mikael Skrifvars ◽  
Mohammad Taherzadeh
Keyword(s):  
Catalytic Synthesis

Catalytic synthesis of sulfur and phosphorus compounds via atom-economic reactions

2020 ◽  
Vol 30 (2) ◽  
pp. 129-138
Author(s):  
Shin-ichi Kawaguchi ◽  
Yuki Yamamoto ◽  
Akiya Ogawa
Keyword(s):  
Catalytic Synthesis ◽  
Phosphorus Compounds

Insights into the Solubility of Carbon Dioxide in Grafted Mesoporous Silica for the Catalytic Synthesis of Cyclic Carbonates by Nanoconfinement

2021 ◽  
Author(s):  
Shahab Boroun ◽  
Abolfazl Alizadeh Sahraei ◽  
Abdol Hadi Mokarizadeh ◽  
Houshang Alamdari ◽  
Frédéric-Georges Fontaine ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mesoporous Silica ◽  
Catalytic Synthesis ◽  
Cyclic Carbonates

scholarly journals Cover Feature: Sustainable Catalytic Synthesis of Diethyl Carbonate (ChemSusChem 3/2021)

ChemSusChem ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 755-755
Author(s):  
Wahyu S. Putro ◽  
Akira Ikeda ◽  
Shinji Shigeyasu ◽  
Satoshi Hamura ◽  
Seiji Matsumoto ◽  
...  
Keyword(s):  
Catalytic Synthesis ◽  
Diethyl Carbonate

Chiral imidazolidinones: A class of priviliged organocatalysts in stereoselective organic synthesis

2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Laura Raimondi ◽  
Chiara Faverio ◽  
Monica Fiorenza Boselli
Keyword(s):  
Pharmaceutical Industry ◽  
Green Chemistry ◽  
Organic Synthesis ◽  
Catalytic Synthesis ◽  
Biological Chemistry ◽  
Chiral Molecules ◽  
Catalytic Systems ◽  
Drug Synthesis ◽  
Industry Needs

AbstractChiral molecules hold a mail position in Organic and Biological Chemistry, so pharmaceutical industry needs suitable strategies for drug synthesis. Moreover, Green Chemistry procedures are increasingly required in order to avoid environment deterioration. Catalytic synthesis, in particular organocatalysis, in thus a continuously expanding field. A survey of more recent researches involving chiral imidazolidinones is here presented, with a particular focus on immobilized catalytic systems.

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