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Issue 15, 2019
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Aromatic guanidines as highly active binary catalytic systems for the fixation of CO2 into cyclic carbonates under mild conditions

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Abstract

We have synthesised a set of aromatic mono- and bis(guanidines) which are highly effective binary catalytic systems (guanidine/cocatalyst) for the formation of cyclic carbonates. The presence of multiple N–H bonds causes a modification in the traditional mechanism proposed for the synthesis of cyclic carbonates catalysed by guanidines through the formation of hydrogen bonds between the oxygen atom of the epoxide and the N–H groups of the guanidines. This change allows a considerable reduction of the reaction temperature and CO2 pressure employed in this process.

Graphical abstract: Aromatic guanidines as highly active binary catalytic systems for the fixation of CO2 into cyclic carbonates under mild conditions

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Article information


Submitted
08 Apr 2019
Accepted
03 Jun 2019
First published
06 Jun 2019

Catal. Sci. Technol., 2019,9, 3879-3886
Article type
Paper

Aromatic guanidines as highly active binary catalytic systems for the fixation of CO2 into cyclic carbonates under mild conditions

Á. Mesías-Salazar, J. Martínez, R. S. Rojas, F. Carrillo-Hermosilla, A. Ramos, R. Fernández-Galán and A. Antiñolo, Catal. Sci. Technol., 2019, 9, 3879
DOI: 10.1039/C9CY00667B

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