Selective oxidation of pyridine to pyridine-N-oxide with hydrogen peroxide over Ti-MWW catalyst

Wei Xie; Yuting Zheng; Song Zhao; Junxia Yang; Yueming Liu; Peng Wu

doi:10.1016/j.cattod.2010.02.045

Selective oxidation of pyridine to pyridine-N-oxide with hydrogen peroxide over Ti-MWW catalyst

Wei Xie, Yuting Zheng, Song Zhao, Junxia Yang, Yueming Liu, Peng Wu

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The oxidation of pyridine to pyridine-N-oxide (PNO) with hydrogen peroxide has been investigated on various titanosilicate catalysts. Superior to other titanosilicates like TS-1, Ti-Beta and Ti-MOR, Ti-MWW showed a higher catalytic activity and product selectivity. The reaction parameters such as solvent, temperature, hydrogen peroxide/substrate ratio, the amount of catalyst and Ti content were optimized to maximize the PNO yield. Ti-MWW was capable of giving pyridine conversion and PNO selectivity both over 99% under optimum reaction conditions. Ti-MWW was a highly active, selective, and reusable catalyst for the synthesis of PNO. The mechanism for the oxidation of pyridine over titanosilicates has also been considered. Ti-MWW was further structurally modified to posses open reaction spaces by interlayer expansion, which reduced the diffusion limitations in the oxidation of pyridine derivatives with bulkier molecular dimensions.

Original language	English
Pages (from-to)	114-118
Number of pages	5
Journal	Catalysis Today
Volume	157
Issue number	1-4
DOIs	https://doi.org/10.1016/j.cattod.2010.02.045
State	Published - 17 Nov 2010

Keywords

Hydrogen peroxide
Oxidation
Pyridine
Pyridine-N-oxide
Ti-MWW

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10.1016/j.cattod.2010.02.045

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title = "Selective oxidation of pyridine to pyridine-N-oxide with hydrogen peroxide over Ti-MWW catalyst",

abstract = "The oxidation of pyridine to pyridine-N-oxide (PNO) with hydrogen peroxide has been investigated on various titanosilicate catalysts. Superior to other titanosilicates like TS-1, Ti-Beta and Ti-MOR, Ti-MWW showed a higher catalytic activity and product selectivity. The reaction parameters such as solvent, temperature, hydrogen peroxide/substrate ratio, the amount of catalyst and Ti content were optimized to maximize the PNO yield. Ti-MWW was capable of giving pyridine conversion and PNO selectivity both over 99\% under optimum reaction conditions. Ti-MWW was a highly active, selective, and reusable catalyst for the synthesis of PNO. The mechanism for the oxidation of pyridine over titanosilicates has also been considered. Ti-MWW was further structurally modified to posses open reaction spaces by interlayer expansion, which reduced the diffusion limitations in the oxidation of pyridine derivatives with bulkier molecular dimensions.",

keywords = "Hydrogen peroxide, Oxidation, Pyridine, Pyridine-N-oxide, Ti-MWW",

author = "Wei Xie and Yuting Zheng and Song Zhao and Junxia Yang and Yueming Liu and Peng Wu",

year = "2010",

month = nov,

day = "17",

doi = "10.1016/j.cattod.2010.02.045",

language = "英语",

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pages = "114--118",

journal = "Catalysis Today",

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TY - JOUR

T1 - Selective oxidation of pyridine to pyridine-N-oxide with hydrogen peroxide over Ti-MWW catalyst

AU - Xie, Wei

AU - Zheng, Yuting

AU - Zhao, Song

AU - Yang, Junxia

AU - Liu, Yueming

AU - Wu, Peng

PY - 2010/11/17

Y1 - 2010/11/17

N2 - The oxidation of pyridine to pyridine-N-oxide (PNO) with hydrogen peroxide has been investigated on various titanosilicate catalysts. Superior to other titanosilicates like TS-1, Ti-Beta and Ti-MOR, Ti-MWW showed a higher catalytic activity and product selectivity. The reaction parameters such as solvent, temperature, hydrogen peroxide/substrate ratio, the amount of catalyst and Ti content were optimized to maximize the PNO yield. Ti-MWW was capable of giving pyridine conversion and PNO selectivity both over 99% under optimum reaction conditions. Ti-MWW was a highly active, selective, and reusable catalyst for the synthesis of PNO. The mechanism for the oxidation of pyridine over titanosilicates has also been considered. Ti-MWW was further structurally modified to posses open reaction spaces by interlayer expansion, which reduced the diffusion limitations in the oxidation of pyridine derivatives with bulkier molecular dimensions.

AB - The oxidation of pyridine to pyridine-N-oxide (PNO) with hydrogen peroxide has been investigated on various titanosilicate catalysts. Superior to other titanosilicates like TS-1, Ti-Beta and Ti-MOR, Ti-MWW showed a higher catalytic activity and product selectivity. The reaction parameters such as solvent, temperature, hydrogen peroxide/substrate ratio, the amount of catalyst and Ti content were optimized to maximize the PNO yield. Ti-MWW was capable of giving pyridine conversion and PNO selectivity both over 99% under optimum reaction conditions. Ti-MWW was a highly active, selective, and reusable catalyst for the synthesis of PNO. The mechanism for the oxidation of pyridine over titanosilicates has also been considered. Ti-MWW was further structurally modified to posses open reaction spaces by interlayer expansion, which reduced the diffusion limitations in the oxidation of pyridine derivatives with bulkier molecular dimensions.

KW - Hydrogen peroxide

KW - Oxidation

KW - Pyridine

KW - Pyridine-N-oxide

KW - Ti-MWW

UR - https://www.scopus.com/pages/publications/78049310281

U2 - 10.1016/j.cattod.2010.02.045

DO - 10.1016/j.cattod.2010.02.045

M3 - 文章

AN - SCOPUS:78049310281

SN - 0920-5861

VL - 157

SP - 114

EP - 118

JO - Catalysis Today

JF - Catalysis Today

IS - 1-4

ER -

Selective oxidation of pyridine to pyridine-N-oxide with hydrogen peroxide over Ti-MWW catalyst

Abstract

Keywords

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