One-Pot Synthesis of Styrene Carbonate from Styrene and CO2 Over the Nanogold-Ionic Liquid Catalyst

Autor:	Stefan Baj, Katarzyna Jasiak, Mirosława Pawlyta, Agata Jakóbik-Kolon, Tomasz Krawczyk
Rok vydání:	2016
Předmět:	010405 organic chemistry One-pot synthesis Inorganic chemistry Epoxide General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Styrene chemistry.chemical_compound chemistry Chemical engineering Bromide Ionic liquid Anhydrous Carbonate
Zdroj:	Catalysis Letters. 146:893-901
ISSN:	1572-879X 1011-372X
Popis:	A catalyst system for the efficient two-step coupling of CO2 and styrene to styrene carbonate was developed. Gold nanoparticles immobilized on multi-walled carbon nanotubes (Au/CNT) of 6 nm in diameter were used as a catalyst for the epoxidation step. The process was carried out at 80 °C for 4 h in the presence of anhydrous tert-butyl hydroperoxide as an oxidant. The reaction of the resulting epoxide and CO2 was catalyzed by the 1-butyl-3-methylimidazolium bromide [bmim]Br-ZnBr2 system under the CO2 pressure (1.2 MPa) at 120 °C. A high styrene carbonate yield of 60 % was achieved. After the reaction, Au/CNT could be easily separated and reused without any significant loss of activity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::27eac917777dd23ccdea4a34743261c6 https://doi.org/10.1007/s10562-016-1703-z Zobrazit plný text záznamu Plný text ve formátu PDF