Guanidinium iodide salts as single component catalysts for CO2 to epoxide fixation

文献情報

出版日 2023-11-17

DOI 10.1039/D3NJ03959E

インパクトファクター 3.591

著者

René S. Rojas, Fernando Carrillo-Hermosilla, Javier Martínez, Antonio Antiñolo, Oleksandra S. Trofymchuk, Fabiane M. Nachtigall, Leonardo S. Santos, Constantin G. Daniliuc

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要旨

In this study, we present the synthesis, characterization and catalytic reactions of a new family of one-component catalysts based on guanidinium salts. The synthesis of cyclic carbonates from epoxides and CO2 at 70–80 °C under 1–5 bar of CO2 pressure is demonstrated using the new one-component guanidinium salts with various substituents. The 1e catalytic system, which has isopropyl-type substituents in its structure, has the best conversion rates; the TON for the synthesis of styrene carbonate was 92. The production of cyclic carbonates from the internal epoxides is another application for these catalytic systems with the conversion of cyclohexane oxide to the respective cyclic carbonate at 86% with 1e catalyst. Finally, ESI-MS was used to examine the interaction of the new organocatalysts with CO2 and epichlorohydrin. These findings led to catalysts made of organic molecules that are suitable for organocatalysis since they do not require a co-catalyst and can operate effectively at moderate pressures and temperatures.

掲載誌

New Journal of Chemistry

CiteScore: 5.3

自己引用率: 3.7%

年間論文数: 2153

NJC (New Journal of Chemistry) is a broad-based primary journal encompassing all branches of chemistry and its sub-disciplines. It contains full research articles, communications, perspectives and focus articles. This well-established journal, owned by the Centre National de la Recherche Scientifique (CNRS) of France, has been co-published with the Royal Society of Chemistry since January 1998. NJC is the forum for the publication of high-quality, original and significant work that opens new directions in chemistry or other scientific disciplines. In addition to having a significant chemical component, work published in NJC must demonstrate that it will have an impact on areas of research other than that of the reported work.

Guanidinium iodide salts as single component catalysts for CO2 to epoxide fixation

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