Issue 3, 2021

Halogen-free fixation of carbon dioxide into cyclic carbonates via bifunctional organocatalysts

Abstract

Bifunctional organocatalysts bearing diamine and carboxylic acid groups were used for the preparation of cyclic carbonates by cycloaddition reactions of CO2 and epoxides. Hydrogen-bonding interactions originating from carboxylic acids are of enormous importance due to their contribution in enabling the opening of the epoxide ring. In addition, the diamine can activate the CO2via carbamate formation and accelerate its transformation to cyclic carbonates. As a result of this synergy, this metal-free system shows excellent catalytic activities with high yields (92–99%) and selectivities (99%), and thus, provides a promising halogen-free and green pathway for the synthesis of cyclic carbonates from CO2 and epoxides.

Graphical abstract: Halogen-free fixation of carbon dioxide into cyclic carbonates via bifunctional organocatalysts

Supplementary files

Article information

Article type
Communication
Submitted
13 נוב 2020
Accepted
14 ינו 2021
First published
15 ינו 2021

Green Chem., 2021,23, 1147-1153

Halogen-free fixation of carbon dioxide into cyclic carbonates via bifunctional organocatalysts

F. Zhang, S. Bulut, X. Shen, M. Dong, Y. Wang, X. Cheng, H. Liu and B. Han, Green Chem., 2021, 23, 1147 DOI: 10.1039/D0GC03846F

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