Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates

Zuoxi Zhuo; Lizhi Wu; Lei Wang; Yichun Ding; Xiaoqian Zhang; Yueming Liu; Mingyuan He

doi:10.1039/C4RA08799B

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Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates†

Zuoxi Zhuo,^a Lizhi Wu,^a Lei Wang,^a Yichun Ding,^a Xiaoqian Zhang,^a Yueming Liu*^a and Mingyuan He^a

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* Corresponding authors

^a Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai, China
E-mail: ymliu@chem.ecnu.edu.cn
Fax: +86 21 62232058

Abstract

The Lewis acidity of titanosilicates determines the selectivity of the oxime in ammoximation. Higher Lewis acidic strength of Ti active sites could promote free H₂O₂ to participate in the highly efficient formation of NH₂OH by lowering the reaction activation energy for the formation of Ti–OOH species, and thus fundamentally suppress the side reactions of deep oxidation.

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DOI: https://doi.org/10.1039/C4RA08799B
Article type: Communication
Submitted: 17 Aug 2014
Accepted: 29 Sep 2014
First published: 29 Sep 2014

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RSC Adv., 2014,4, 55685-55688

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Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates

Z. Zhuo, L. Wu, L. Wang, Y. Ding, X. Zhang, Y. Liu and M. He, RSC Adv., 2014, 4, 55685 DOI: 10.1039/C4RA08799B

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Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates†

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Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates

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