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

Abstract

Electrogenerated bases promote the reaction between primary alcohols and carbon dioxide to give organic carbonates in excellent yields. Secondary alcohols are converted in moderate yields, whereas tertiary alcohols and phenols are unreactive. 1,2‐Diols give a mixture of both cyclic and linear di‐ and monocarbonates. These latter are intermediates in the reaction pathway leading to the cyclic derivatives.

Metal‐Free Synthesis of Cyclic and Acyclic Carbonates from CO2 and Alcohols

“…DBU–CO 2 adducts are known to react with nucleophiles 8a,9. The addition of a primary alcohol to CO 2 is known to be favored over the addition of a secondary alcohol to CO 2 11. The intramolecular addition of the secondary alcohol followed by the elimination of HOCH 2 Br affords 4b .…”

Recent Advances in Carbon Dioxide Capture, Fixation, and Activation by using N‐Heterocyclic Carbenes

“…There were several literature examples that showed that bases promote the action of primary alcohols with carbon dioxide to give organic carbonates in high yields. [180][181][182]…”

Development in the green synthesis of cyclic carbonate from carbon dioxide using ionic liquids

“…Electrochemical synthesis of cyclic carbonates from CO 2 with epoxides, alcohols and glycols is also known [33,34,[58][59][60]. In these methods, harmful organic solvents, supporting electrolytes and/or catalysts were necessarily used.…”