Ti-MCM-41 as catalyst for α-pinene oxidation -: Study of the effect of Ti content and H2O2 addition on activity and selectivity

被引：41

作者：

Casuscelli, Sandra G. ^{[1
]}

Eimer, Griselda A. ^{[1
]}

Canepa, Analia ^{[1
]}

Heredia, Angelica C. ^{[1
]}

Poncio, Carlos E. ^{[1
]}

Crivello, Monica E. ^{[1
]}

Perez, Celso E. ^{[1
]}

Aguilar, Alfredo ^{[2
]}

Herrero, Eduardo R. ^{[1
]}

机构：

[1] UTN FRC, Ctr Invest & Tecnol Quim CITeQ, RA-5016 Cordoba, Argentina

[2] CIMAV, Ctr Invest Mat Avanzados, Chihuahua 31109, Chih, Mexico

来源：

CATALYSIS TODAY | 2008年 / 133卷 / 1-4期

关键词：

Ti-MCM-41; alpha-pinene; campholenic aldehyde; allylic oxidation; fragrance;

D O I：

10.1016/j.cattod.2007.12.104

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

Ti containing mesoporous materials with a MCM-41 structure were applied as heterogeneous catalysts for the liquid phase oxidation of alpha-pinene with hydrogen peroxide at 343 K. The catalysts were characterized by N-2 adsorption, XRD and DRUV-Vis. The results obtained by varying the Ti content showed slight changes in the alpha-pinene conversion. The major products were verbenol, verbenone and campholenic aldehyde with a conversion about 12-16%. The yield of the reaction products was duplicated when an additional amount of H2O2 was added after 1 h of reaction. A high selectivity was obtained for the products of the allylic oxidation. A reaction mechanism was proposed in order to explain the obtained results. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：678 / 683

页数：6

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