A novel zinc based binary catalytic system for CO₂utilization under mild conditions

Abstract

A novel zinc based binary catalytic system for the synthesis of cyclic carbonates under mild and solvent-free conditions utilizing CO2as a C1 building block is reported.

Conversion of CO2 into Cyclic Carbonates under Ambient Conditions Catalyzed by Rare-Earth Metal Complexes Bearing Poly(phenolato) Ligand

“…CO 2 is an ideal C1 resource as it is rich, renewable, and nontoxic. − However, its stable thermodynamic properties greatly limit its application. , Cycloaddition of CO 2 and epoxides is a 100% atom-economic reaction which forms cyclic carbonates that have found extensive application as battery electrolyte, pharmaceutical/fine chemical intermediates, polymer and engineering plastic syntheses, aprotic polar solvents, etc. − Reactions of CO 2 and epoxides may also produce polycarbonates, which may be used as food packagings, adhesives, and optical media . A number of catalysts have been developed to catalyze the cycloaddition reaction, including transition metal (e.g., Cr, , Mn, , Fe, − Co, − and Zn), − main group metal (e.g., Al, − Mg, − and Ca), − rare-earth (RE) metal, − and organocatalysts. − …”

Copolymerization of CO2 and epoxides mediated by zinc organyls

“… 46–54 Most recently we reported a zinc based binary catalytic system for the synthesis of cyclic carbonates. 55 Herein we report the efficient copolymerization of CHO and CO 2 in the presence of organozinc compounds in catalytic amounts under co-catalyst and halogen-free conditions.…”

“…55 Herein we report the efficient copolymerization of CHO and CO 2 in the presence of organozinc compounds in catalytic amounts under cocatalyst and halogen-free conditions.…”

Highly Efficient and Convenient Supported Ionic Liquid TiCl5-DMIL@SiO2@Fe3O4-Catalyzed Cycloaddition of CO2 and Epoxides to Cyclic Carbonates

“…However, these protocols suffered from some drawbacks such as the use of stoichiometric amount of catalysts and generation of vast amounts of corrosive wastes. In order to overcome these problems, many efforts have been developed for this transformation, and various catalysts have been developed including PS-TBMAC/ZnI 2 [6], salencomplexes [7][8][9][10][11], bromide [12], K 2 S 2 O 8 /NaBr [13], MOFs [14][15][16][17][18][19][20][21], quaternary ammonium hydroxide [22], supported imidazole [23], organocatalysts [24,25], and others [26][27][28][29]. However, some of these procedures still require Abstract A series of silica coated magnetic nanoparticles supported ILs were prepared, characterized and their catalytic performances in cycloaddition of CO 2 to epoxides were investigated.…”