View in EDS

Highly efficient Friedel-Crafts acylation of veratrole over TiO2-SnOx solid solution catalyst.

Saved in:
Bibliographic Details
Title: Highly efficient Friedel-Crafts acylation of veratrole over TiO2-SnOx solid solution catalyst.
Authors: Lu, Haoyu1,2 (AUTHOR), Xie, Jin2 (AUTHOR), Wu, Xiaojing2 (AUTHOR), Ma, Qianli2 (AUTHOR), Cheng, Jianian2 (AUTHOR), Li, Zelong1,2 (AUTHOR) lizl@lzu.edu.cn, Hu, Dongcheng1 (AUTHOR) hudch@nwnu.edu.cn
Source: Applied Catalysis A: General. Nov2022, Vol. 648, pN.PAG-N.PAG. 1p.
Subjects: Solid solutions, Metal catalysts, Acid catalysts, Acylation, Metallic oxides, Lewis acids, Solid oxide fuel cells
Abstract: Friedel-Crafts (F-C) acylation reaction is one of the most effective processes to produce aromatic ketones. Classical homogeneous Lewis acid catalysts have difficulty in separation and solid waste generation, which limit their industrial application. Herein, binary metal oxide TiO 2 -SnO x were prepared, these solid solution catalysts show the highly efficient activity for the F-C reaction of veratrole and 4-chlorobenzoyl chloride (4-CBC). The optimized 0.1TiO 2 -SnO x catalyst exhibits the veratrole conversion of 74 % and the 4-chloro-3′,4′-dimethoxybenzophenone (CDMB) selectivity of 97 %. Additionally, it shows good stability. The outstanding catalytic performance of TiO 2 -SnO x can be attributed to homogeneous doping of Ti in SnO x at the atomic level, which results in the strong Lewis acid sites with high density on the surface of solid solution. This work revealed the superior Lewis acid catalyst with solid solution structure, constructed through binary metal oxide, can pave a new avenue for developing the solid Lewis acid with excellent catalytic performance. [Display omitted] • Binary metal oxide TiO 2 -SnO x solid solution catalysts were fabricated. • Friedel-Crafts acylation reaction of veratrole and 4-chlorobenzoyl chloride was performed. • TiO 2 -SnO x shows excellent stability under five cycles. • NH 3 -TPD and Py-IR analysis were used to investigate the acid properties. [ABSTRACT FROM AUTHOR]
Copyright of Applied Catalysis A: General is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Friedel-Crafts (F-C) acylation reaction is one of the most effective processes to produce aromatic ketones. Classical homogeneous Lewis acid catalysts have difficulty in separation and solid waste generation, which limit their industrial application. Herein, binary metal oxide TiO 2 -SnO x were prepared, these solid solution catalysts show the highly efficient activity for the F-C reaction of veratrole and 4-chlorobenzoyl chloride (4-CBC). The optimized 0.1TiO 2 -SnO x catalyst exhibits the veratrole conversion of 74 % and the 4-chloro-3′,4′-dimethoxybenzophenone (CDMB) selectivity of 97 %. Additionally, it shows good stability. The outstanding catalytic performance of TiO 2 -SnO x can be attributed to homogeneous doping of Ti in SnO x at the atomic level, which results in the strong Lewis acid sites with high density on the surface of solid solution. This work revealed the superior Lewis acid catalyst with solid solution structure, constructed through binary metal oxide, can pave a new avenue for developing the solid Lewis acid with excellent catalytic performance. [Display omitted] • Binary metal oxide TiO 2 -SnO x solid solution catalysts were fabricated. • Friedel-Crafts acylation reaction of veratrole and 4-chlorobenzoyl chloride was performed. • TiO 2 -SnO x shows excellent stability under five cycles. • NH 3 -TPD and Py-IR analysis were used to investigate the acid properties. [ABSTRACT FROM AUTHOR]
ISSN:0926860X
DOI:10.1016/j.apcata.2022.118922