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 ◽  
...  
Author(s):  
Shahab Boroun ◽  
Abolfazl Alizadeh Sahraei ◽  
Abdol Hadi Mokarizadeh ◽  
Houshang Alamdari ◽  
Frédéric-Georges Fontaine ◽  
...  

2020 ◽  
Vol 44 (6) ◽  
pp. 2547-2554 ◽  
Author(s):  
Rakhimoni Borah ◽  
Naranarayan Deori ◽  
Sanfaori Brahma

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.


2015 ◽  
Vol 5 (9) ◽  
pp. 4636-4643 ◽  
Author(s):  
M. Alves ◽  
B. Grignard ◽  
S. Gennen ◽  
R. Mereau ◽  
C. Detrembleur ◽  
...  

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.


Synthesis ◽  
2019 ◽  
Vol 52 (01) ◽  
pp. 150-158 ◽  
Author(s):  
Naoto Aoyagi ◽  
Yoshio Furusho ◽  
Takeshi Endo

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.


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