Isolation of a Pyridinium Alkoxy Ion Bridged Dimeric Zinc Complex for the Coupling Reactions of CO2 and Epoxides

Kim, Hoon Sik; Kim, Jai Jun; Lee, Byung Gwon; Jung, Ok Sang; Jang, Ho G.; Kang, Sang Ook

doi:10.1002/1521-3773(20001117)39:22<4096::aid-anie4096>3.0.co;2-9

Cited by 161 publications

(11 citation statements)

References 15 publications

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“…The activities of ILs could be greatly improved by adding metal salts or complexes for the synthesis of cyclic carbonates. Furthermore, synergistic effects on promoting the cycloaddition reactions of epoxides have been reported [31,[34][35][36][37][38][39][40][42][43][44][45][46][47][48][49][50][51][52].…”

Section: Metal-based Ionic Liquidsmentioning

confidence: 99%

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Ionic Liquids: The Synergistic Catalytic Effect in the Synthesis of Cyclic Carbonates

Cheng

Wang

et al. 2013

Catalysts

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This review presents the synergistic effect in the catalytic system of ionic liquids (ILs) for the synthesis of cyclic carbonate from carbon dioxide and epoxide. The emphasis of this review is on three aspects: the catalytic system of metal-based ionic liquids, the catalytic system of hydrogen bond-promoted ionic liquids and supported ionic liquids. Metal and ionic liquids show a synergistic effect on the cycloaddition reactions of epoxides. The cations and anions of ionic liquids show a synergistic effect on the cycloaddition reactions. The functional groups in cations or supports combined with the anions have a synergistic effect on the cycloaddition reactions. Synergistic catalytic effects of ILs play an important role of promoting the cycloaddition reactions of epoxides. The design of catalytic system of ionic liquids will be possible if the synergistic effect on a molecular level is understood.

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Section: Metal-based Ionic Liquidsmentioning

confidence: 99%

“…Zn (II) halide complexes have been known to be active catalysts for cycloaddition reaction for a long time [42][43][44][45]. Kim reported a simple catalytic system consisting of ZnBr 2 and imidazolium-based ILs [48].…”

Section: Metal-based Ionic Liquidsmentioning

confidence: 99%

Ionic Liquids: The Synergistic Catalytic Effect in the Synthesis of Cyclic Carbonates

Cheng

Wang

et al. 2013

Catalysts

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“…reported that the insertion of CO 2 into metal-O bond of metal complexes occurred even around room temperature and at ambient pressure of CO 2 [11,13,[37][38][39]. This might be a possible reason why the influence of CO 2 pressure on the SC yield was not so significant (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Among the catalysts reported so far, zinc complexes were found to have good activities for the CO 2 cycloaddition under mild conditions [11][12][13][14][15][16][17][18]. It was also found that the zinc halide and zinc oxide in conjunction with various bases provided efficient binary catalyst systems for the CO 2 cycloaddition, although these zinc compounds themselves had no activity for the reaction and the activities of the bases were very low [19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Styrene Carbonate from Carbon Dioxide and Styrene Oxide with Various Zinc Halide-Based Ionic Liquids

2010

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Various zinc halide-based ionic liquids were prepared from zinc halides and onium halides as catalysts for the synthesis of styrene carbonate (SC) from styrene oxide and carbon dioxide.The effects of the ionic liquid catalyst composition (types of onium cation and halide, onium cation/zinc ratio) and CO 2 pressure on the reaction were investigated. The effectiveness of the onium cation as the active catalyst component was in the order of tetrabutylammonium > 1-butylpyridinium > 1-butyl-3-methylimidazolium >> choline. The type of halide atom originating from the zinc salt affected the catalytic activity of the ionic liquid more significantly than that of the one originating from the onium salt. The onium cation/zinc ratio also affected the SC yield, but its manner was different depending on the type of onium cation.Influence of CO 2 pressure was not significant.

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“…avoiding the usage of phosgene and having only water as by-product). A large number of catalysts for the cycloaddition of CO 2 to epoxides have been proposed, ranging from heterogeneous catalysts (such as alkali metal salts 11,12 , organo-phosphorus compounds 13 , metal oxides 14,15 , covalent organic framework (COF) functionalized with triazine 16 ) to homogeneous catalysts (such as chromium complex in dichloromethane, isolated zinc complexes 17,18 and ionic liquids in scCO 2 [19][20][21] . Despite their high efficiency, homogeneous catalysts present the known disadvantages of difficult product separation and catalyst recycling.…”

Section: Introductionmentioning

confidence: 99%

Design of high surface area poly(ionic liquid)s to convert carbon dioxide into ethylene carbonate

et al. 2015

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A series of porous poly(ionic liquid)s (PILs) were synthesized using an innovative method which involves the synthesis of a non-ionic co-polymer of divinylbenzene and vinylimidazole, followed by an alkylation step to introduce the Io nic Liquid functionality in the polymeric matrix. This synthetic strategy allowed to obtain tuneable imidazolium type PILs having simultaneously high surface area and exposed ionic moieties. A set of PILs was obtained changing systematically the alkyl chains, the anions and the cross-link degree. This approach allowed to elucidate the effect of each synthetic variable on the catalytic performances of PILs towards carbon dioxide cycloaddition reaction in very mild conditions (room temperature and low pressure). Finally, in-situ FTIR spectroscopy allowed to establish a relation between structure of PILs and their catalytic properties.

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Isolation of a Pyridinium Alkoxy Ion Bridged Dimeric Zinc Complex for the Coupling Reactions of CO2 and Epoxides

Cited by 161 publications

References 15 publications

Ionic Liquids: The Synergistic Catalytic Effect in the Synthesis of Cyclic Carbonates

Ionic Liquids: The Synergistic Catalytic Effect in the Synthesis of Cyclic Carbonates

Synthesis of Styrene Carbonate from Carbon Dioxide and Styrene Oxide with Various Zinc Halide-Based Ionic Liquids

Design of high surface area poly(ionic liquid)s to convert carbon dioxide into ethylene carbonate

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