Thermodynamic favorable CO2 conversion via vicinal diols and propargylic alcohols: A metal-free catalytic method

Publication date: Available online 19 June 2019Source: Chinese Chemical LettersAuthor(s): Li-Hua Han, Jing-Yuan Li, Qing-Wen Song, Kan Zhang, Qian-Xia Zhang, Xiao-Fang Sun, Ping LiuAbstractOrganocatalysis represents a promising field in chemical fixation of CO2. Herein, a facile metal-free strategy was reported for the one-pot preparation of cyclic carbonates and α-hydroxy ketones from vicinal diols, propargylic alcohols and CO2. Wide scope of vicinal diols and propargylic alcohols was demonstrated to be efficient under the DBU-catalyzed conditions. A plausible mechanism was proposed, which included detailed main and side reactions under the metal-free conditions.Graphical abstractMetal-free-catalyzed strategy (DBU catalysis) for CO2 conversion was developed via a thermodynamically favorable three-component cascade reaction of CO2, propargylic alcohols and vicinal alcohols.

Source: Chinese Chemical Letters - June 19, 2019 Category: Chemistry Source Type: research