Organocatalytic promoted coupling of carbon dioxide with epoxides: a rational investigation of the cocatalytic activity of various hydrogen bond donors

2015 ◽  
Vol 5 (9) ◽  
pp. 4636-4643 ◽  
Author(s):  
M. Alves ◽  
B. Grignard ◽  
S. Gennen ◽  
R. Mereau ◽  
C. Detrembleur ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Cyclic Carbonates ◽  
Mild Conditions ◽  
Hydrogen Bond Donors

A rational investigation of the cocatalytic activity of a series of commercially available hydrogen bond donors (HBDs) for the synthesis of cyclic carbonates from CO2 and epoxides under mild conditions.

Pyridine-bridged bifunctional organocatalysts for the synthesis of cyclic carbonates from carbon dioxide

2019 ◽  
Vol 43 (7-8) ◽  
pp. 248-256
Author(s):  
Quan-Yao Liu ◽  
Lei Shi ◽  
Ning Liu
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Bond ◽  
Cycloaddition Reaction ◽  
Carboxyl Groups ◽  
Cyclic Carbonates ◽  
Reaction Conditions ◽  
Halide Anions ◽  
Simple Filtration ◽  
Hydrogen Bond Donors

Hydroxyl- and carboxyl-functionalized imidazolium halides are used as efficient bifunctional organocatalysts for the synthesis of cyclic carbonates from CO2 and epoxides under mild reaction conditions. Control experiments suggest that the cycloaddition reaction is realized by the combination of the nucleophilic halide anions with hydroxyl and carboxyl groups as hydrogen bond donors. Moreover, the bifunctional organocatalysts can be easily recycled five times by simple filtration; however, a loss of activity was observed.

An efficient CO2 fixation reaction with epoxides catalysed by in situ formed blue vanadium catalyst from dioxovanadium(+5) complex: moisture enhanced and atmospheric oxygen retarded catalytic activity

2020 ◽  
Vol 44 (6) ◽  
pp. 2547-2554 ◽  
Author(s):  
Rakhimoni Borah ◽  
Naranarayan Deori ◽  
Sanfaori Brahma
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Activity ◽  
Co2 Fixation ◽  
Atmospheric Oxygen ◽  
Carbon Dioxide Fixation ◽  
Vanadium Catalyst ◽  
Cyclic Carbonates ◽  
Mild Conditions ◽  
Fixation Reaction

In situ formed vanadium(+4) species catalyzed carbon dioxide fixation reaction, leading to 99% conversion of epoxides to cyclic carbonates under mild conditions is reported here, along with the study on the in situ formed catalyst to some extent.

Catalytic synthesis of cyclic carbonates from epoxides and carbon dioxide by magnetic UiO-66 under mild conditions

2016 ◽  
Vol 31 (7) ◽  
pp. e3656 ◽  
Author(s):  
Mahbube Delavari ◽  
Farnaz Zadehahmadi ◽  
Shahram Tangestaninejad ◽  
Majid Moghadam ◽  
Valiollah Mirkhani ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Synthesis ◽  
Cyclic Carbonates ◽  
Mild Conditions

Efficient Catalysts of Acyclic Guanidinium Iodide for the Synthesis of Cyclic Carbonates from Carbon Dioxide and Epoxides under Mild Conditions

Synthesis ◽  
2019 ◽  
Vol 52 (01) ◽  
pp. 150-158 ◽  
Author(s):  
Naoto Aoyagi ◽  
Yoshio Furusho ◽  
Takeshi Endo
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Activity ◽  
Cycloaddition Reactions ◽  
Cyclic Carbonates ◽  
Polar Solvents ◽  
Mild Conditions ◽  
Iodide Ion ◽  
Good Catalytic Activity ◽  
High Yields ◽  
Guanidinium Salts

We have studied the synthesis of five-membered cyclic carbonates through the cycloaddition of CO2 to epoxides by using acyclic guanidinium salts. We have found that the cycloaddition reactions proceed smoothly at ordinary temperatures and pressures and result in good yields when acyclic guanidinium iodides are employed as catalysts. Both cation moiety and anion moiety of the guanidinium salts play important roles in their catalytic activity. It is essential to have active hydrogens on the cation moiety as well as an iodide ion as the anion moiety so as to achieve good catalytic activity. Guanidinium iodides with three or more active hydrogens give cyclic carbonates in high yields in polar solvents such as 1-methylpyrrolidin-2-one, whereas the guanidinium iodides with one or two active hydrogens show good catalytic activity in less polar solvents such as 2-methyltetrahydrofuran.

Sign in / Sign up

Export Citation Format

Share Document