Asymmetric electrocarboxylation of 4′-methylacetophenone over PrCoO3 perovskites. Issue 9 (30th March 2022)

• Record Type: Journal Article
• Authors: Zhao, Yi-Jun; Yang, Li-Rong; Wang, Le-Ting; Wang, Ying; Lu, Jia-Xing; Wang, Huan
• Is Part Of: Catalysis science & technology. Volume 12:Issue 9(2022)
• Page Start: 2887
• Page End: 2893
• Publication Date: 2022-03-30
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/d2cy00116k
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : Asymmetric electrocarboxylation of aromatic ketones has been achieved over PrCoO3 perovskites with the help of chiral auxiliary t -Bu( R, R )salen(Co[ii ]) under CO2 atmosphere. Abstract : PrCoO3 perovskites were synthesized by a traditional method followed by calcining at 500–900 °C, and were fully characterized using various scientific instruments. They were proposed as cathodes for the asymmetric electrocarboxylation of aromatic ketones with the help of the chiral auxiliary t -Bu( R, R )salen(Co[ii ]). A considerable yield (54%) and high enantiomeric excess (95% ee) of hydroxy acid were obtained. The good electrocatalytic performances were attributed to the contents of oxygen vacancies and Co 3+ active species of the PrCoO3 perovskites, which were affected by different calcination temperatures. Furthermore, PrCoO3 demonstrated high stability and reusability.