Mechanism of Formation of Organic Carbonates from Aliphatic Alcohols and Carbon Dioxide under Mild Conditions Promoted by Carbodiimides. DFT Calculation and Experimental Study
into a carbamate and a secondary amine, while in the presence of CO2, the dialkylcarbonate, (RO)2CO, is formed together with urea [CyHN−CO−NHCy]. The reaction has been tested with various aliphatic alcohols such as methanol, ethanol, and allyl alcohol. It results in being a convenient route to the synthesis of diallyl carbonate, in particular. O-Methyl-N,N‘-dicyclohexyl isourea also reacts with phenol