MCM-41-Accelerated PWA Catalysis of Friedel-Crafts Reaction of Indoles and Isatins. (18th January 2018)

• Record Type: Journal Article
• Authors: Xing, Liuzhuang; Hui, YongHai; Yang, Jinghui; Xing, Xuejian; Hou, Yadong; Wu, Yang; Fan, Kui; Wang, Wei
• Other Names: Longo Pasquale Academic Editor.
• Is Part Of: Journal of chemistry. Volume 2018(2018)
• Publication Date: 2018-01-18
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1155/2018/2785067
• Languages: English
• ISSNs: 2090-9063

Abstract

Abstract : Ordered mesoporous siliceous material has been identified as one of the key elements of the catalysis concept. Here we report an efficient Friedel-Crafts reaction of indoles with isatins catalyzed by PWA/MCM-41, which got the di(indolyl)indolin-2-ones derivatives with high yield. Moreover, the catalysts were characterized by XRD and SEM/EDS, the EDS spectrum indicated that the catalyst used in this reaction also contains tungsten, and the proposed mechanism for the synthesis of 3, 3-di(indolyl)indolin-2-ones was also discussed. Finally, the catalyst can be reused repeatedly for several times without obvious loss of activity.