The system as mild and safe carboxylating reagent synthesis of organic carbonates

Electrogenerated Base-Promoted Synthesis of Organic Carbonates from Alcohols and Carbon Dioxide

“…[3,4] The monocarbonate 9a and dicarbonates 10a,b were obtained by reacting equimolar amounts of the corresponding diol and ethyl chloroformate according to standard procedures, [11] and purified by c.c. with a mixture of light petroleum/AcOEt (3:2) in the case of 9a and 10a and CHCl 3 /Me 2 CO (95:5) in the case of 10b as eluents.…”

“…We have already described a new approach to organic carbonates based on the electrocarboxylation of alcohols and 1,2-diols following activation of carbon dioxide by either cathodic reduction [2,3] or electrogenerated superoxide anion. [3,4] Both methods allow the synthesis of linear and cyclic carbonates under very mild and safe conditions, but not in very high yields. Therefore, we have reconsidered the synthesis of organic carbonates from alcohols and carbon dioxide with the aim of increasing the yield of the process.…”

Ionic Liquids in Green Carbonate Synthesis

“…Electrochemical synthesis of cyclic carbonates from CO 2 with epoxides, anilines, alcohols, and glycols was reported [53][54][55][56][57][58][59][60]. For example, Duñach et al [54] conducted the reaction of epoxides with CO 2 to the corresponding cyclic carbonates by an electrochemical method in the presence of nickel(II) complexes.…”

Electrochemical synthesis of dimethyl carbonate from methanol, CO2 and propylene oxide in an ionic liquid

“…Electrochemical techniques can solve the problem by providing electric power for the system to overcome the thermodynamic limitation. Electrocatalytic synthesis of organic carbonates from carbon dioxide and alcohols or phenols has been reported by several researchers 14–17. Although a high yield of DMC, as one of the organic carbonates, from CO 2 and methanol was attained, toxic methyl iodide or electrogenerated base (e.g.…”