A novel zinc based binary catalytic system for CO2utilization under mild conditions

2016 ◽  
Vol 3 (2) ◽  
pp. 156-164 ◽  
Author(s):  
Willi Desens ◽  
Christina Kohrt ◽  
Anke Spannenberg ◽  
Thomas Werner

A novel zinc based binary catalytic system for the synthesis of cyclic carbonates under mild and solvent-free conditions utilizing CO2as a C1 building block is reported.

2016 ◽  
Vol 6 (11) ◽  
pp. 3872-3877 ◽  
Author(s):  
Lin Wang ◽  
Koichi Kodama ◽  
Takuji Hirose

A simple, mild and inexpensive catalytic system, DBU and benzyl bromide, was developed for the cycloaddition of epoxides to ambient CO2 under metal-free and solvent-free conditions and a wide range of epoxides was converted to the corresponding cyclic carbonates with good to excellent yields (81–95%).


RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51570-51575 ◽  
Author(s):  
Dilip Kumar T. Yadav ◽  
Bhalchandra M. Bhanage

An efficient protocol for the synthesis of quinolines in aqueous medium using a Rh(ii)acetate/TPPTS recyclable catalytic system has been developed. Furthermore, imines were also synthesized from benzylamines in moderate to good yields under solvent free conditions.


Synlett ◽  
2019 ◽  
Vol 31 (02) ◽  
pp. 183-188 ◽  
Author(s):  
Rabah Azzouz ◽  
Viviana Contreras Moreno ◽  
Clara Herasme-Grullon ◽  
Vincent Levacher ◽  
Lionel Estel ◽  
...  

Cheap and readily available 2-aminopyridine and related compounds can be used as organocatalysts for the conversion of epoxides into cyclic carbonates. This reaction gives high conversions under solvent-free conditions and is amenable to a kilogram-scale conversion under mild conditions.


2021 ◽  
pp. 174751982110325
Author(s):  
Yan Xiao ◽  
Jiyu Gao ◽  
Peng Chen ◽  
Guangliang Chen ◽  
Zicheng Li ◽  
...  

A series of symmetrical 1,4-disubstituted buta-1,3-diynes is prepared with excellent yields (up to 95%) through homocoupling of terminal alkynes catalyzed by a copper salt under solvent-free conditions. This method provides an environmentally friendly process to prepare 1,3-diynes in short reaction times under mild conditions. Furthermore, the method is suitable for a wide substrate scope and has excellent functional group compatibility. The reaction can also be scaled up to gram level.


2019 ◽  
Vol 48 (28) ◽  
pp. 10733-10742 ◽  
Author(s):  
Sonia Sobrino ◽  
Marta Navarro ◽  
Juan Fernández-Baeza ◽  
Luis F. Sánchez-Barba ◽  
Andrés Garcés ◽  
...  

Chiral bifunctional and bicomponent NNO-scorpionate zinc-based catalysts have been developed for the fixation of CO2 into cyclic carbonates with broad substrate scope and functional group tolerance under mild and solvent-free conditions.


RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54236-54240 ◽  
Author(s):  
Seyed Mohsen Sadeghzadeh

A green and efficient method for the synthesis of various triazolo[1,2-a]indazoletrione under mild conditions is reported, that making it a genuinely green protocol.


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