The present work deals with the novel use of heterogeneous catalysts for the preparation of solketal from bio-glycidol. Sustainable feedstocks and mild reaction conditions are considered to enhance the greenness of the proposed process. Nafion NR50 promotes the quantitative and selective acetalization of glycidol with acetone. DFT calculations demonstrate that the favored mechanism consists in the nucleophilic attack of acetone to glycidol concerted with the ring opening assisted by the acidic groups on the catalyst and in the following closure of the five member ring of the solketal.
Bio-glycidol conversion to solketal over acid heterogeneous catalysts: Synthesis and theoretical approach / Ricciardi, Maria; Falivene, Laura*; Tabanelli, Tommaso; Proto, Antonio; Cucciniello, Raffaele; Cavani, Fabrizio. - In: CATALYSTS. - ISSN 2073-4344. - STAMPA. - 8:(2018), pp. 391-399. [10.3390/catal8090391]
Bio-glycidol conversion to solketal over acid heterogeneous catalysts: Synthesis and theoretical approach
Tabanelli, Tommaso;Cavani, Fabrizio
2018
Abstract
The present work deals with the novel use of heterogeneous catalysts for the preparation of solketal from bio-glycidol. Sustainable feedstocks and mild reaction conditions are considered to enhance the greenness of the proposed process. Nafion NR50 promotes the quantitative and selective acetalization of glycidol with acetone. DFT calculations demonstrate that the favored mechanism consists in the nucleophilic attack of acetone to glycidol concerted with the ring opening assisted by the acidic groups on the catalyst and in the following closure of the five member ring of the solketal.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
