The catalytic activity of the ruthenium(VI) bis-imido porphyrin complex/TBACl binary system in promoting the CO2 cycloaddition to epoxides forming cyclic carbonates is here reported. The system was very efficient in catalyzing the conversion of differently substituted epoxides under mild experimental conditions (100 °C and 0.6 MPa of CO2). Even if the sole TBACl resulted active under the optimized experimental conditions, the addition of ruthenium species was fundamental to maximizing the reaction productivity both in terms of epoxide conversions and cyclic carbonate selectivities. A preliminary mechanistic study indicated a positive role of ruthenium imido nitrogen atom in activating carbon dioxide.

Synthesis of cyclic carbonates by ruthenium(VI) bis -imido porphyrin/TBACl-catalyzed reaction of epoxide with CO2 / C. Damiano, P. Sonzini, D. Intrieri, E. Gallo. - In: JOURNAL OF PORPHYRINS AND PHTHALOCYANINES. - ISSN 1088-4246. - 24:5-7(2020 Jul), pp. 804-816. [10.1142/S1088424619501888]

Synthesis of cyclic carbonates by ruthenium(VI) bis -imido porphyrin/TBACl-catalyzed reaction of epoxide with CO2

C. Damiano
Primo
Membro del Collaboration Group
;
P. Sonzini
Secondo
Membro del Collaboration Group
;
D. Intrieri
Penultimo
Membro del Collaboration Group
;
E. Gallo
Ultimo
2020

Abstract

The catalytic activity of the ruthenium(VI) bis-imido porphyrin complex/TBACl binary system in promoting the CO2 cycloaddition to epoxides forming cyclic carbonates is here reported. The system was very efficient in catalyzing the conversion of differently substituted epoxides under mild experimental conditions (100 °C and 0.6 MPa of CO2). Even if the sole TBACl resulted active under the optimized experimental conditions, the addition of ruthenium species was fundamental to maximizing the reaction productivity both in terms of epoxide conversions and cyclic carbonate selectivities. A preliminary mechanistic study indicated a positive role of ruthenium imido nitrogen atom in activating carbon dioxide.
carbon dioxide; cyclic carbonates; epoxides; homogeneous catalysis; ruthenium
Settore CHIM/03 - Chimica Generale e Inorganica
lug-2020
feb-2020
https://www.worldscientific.com/doi/pdf/10.1142/S1088424619501888
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/728158
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