Support Effects of PW/SiO2 on Friedel-Crafts Acylation of Toluene with Acetic Anhydride

Abstract:

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Support effects of PW/SiO2 on MPA (p-methoxyacetophenone) synthesis from toluene and acetic anhydride were carefully studied, and catalysts were carefully characterized by BET, XRD and NH3-TPD. The charactrerized results displayed that the interaction between PW and SiO2 prevented the loss of acidic protons from PW to form the weak acid PW12O38.5 over PW/SiO2. The weak acid site PW12O38.5 over PW/SiO2 came into being only in case of much more PW being loaded onto SiO2, and the appearance of PW12O38.5 over PW/SiO2 resulted in MPA yield decline.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

58-61

DOI:

10.4028/www.scientific.net/AMR.233-235.58

Citation:

L. Zhang et al., "Support Effects of PW/SiO2 on Friedel-Crafts Acylation of Toluene with Acetic Anhydride", Advanced Materials Research, Vols. 233-235, pp. 58-61, 2011

Online since:

May 2011

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Price:

$35.00

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