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https://hdl.handle.net/10316/27470
Title: | Synthesis of bifunctional cyclic carbonates from CO2 catalysed by choline-based systems | Authors: | Amaral, Adérito J. R. Coelho, Jorge F. J. Serra, Arménio C. |
Keywords: | Carbon dioxide fixation; Cyclic carbonates; Choline iodide; Green chemistry | Issue Date: | 2-Oct-2013 | Publisher: | Elsevier | Citation: | AMARAL, Adérito J. R.; COELHO, Jorge F. J.; SERRA, Arménio C. - Synthesis of bifunctional cyclic carbonates from CO2 catalysed by choline-based systems. "Tetrahedron Letters". ISSN 0040-4039. Vol. 54 Nº. 40 (2013) p. 5518-5522 | Serial title, monograph or event: | Tetrahedron Letters | Volume: | 54 | Issue: | 40 | Abstract: | Easily prepared choline iodide is an active catalyst for the synthesis of cyclic carbonates through the coupling reaction of CO2 and epoxides using low pressure (1 MPa), moderate temperature (85 ºC) and green solvents (ethanol and propan-2-ol). The effects of reaction temperature, pressure, reaction time and amount of catalyst used were also investigated. The results showed moderate to high yields and excellent selectivities of cyclic carbonates with vinyl or acrylate groups under mild reaction conditions. The heterogenization of choline over a Merrifield resin gives access to a supported catalyst with good recyclability and reactivity that can be extended to a variety of terminal epoxide substrates. | URI: | https://hdl.handle.net/10316/27470 | ISSN: | 0040-4039 | DOI: | 10.1016/j.tetlet.2013.07.152 | Rights: | openAccess |
Appears in Collections: | I&D CERES - Artigos em Revistas Internacionais FCTUC Eng.Química - Artigos em Revistas Internacionais FCTUC Química - Artigos em Revistas Internacionais |
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Synthesis of bifunctional cyclic carbonates.pdf | 505.16 kB | Adobe PDF | View/Open |
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