Mesoporous silica containing sulfonic acid groups as catalysts for the alpha-pinene methoxylation

Isabel Maria de Figueiredo Ligeiro da Fonseca; Joaquim Silvério Marques Vital; Ana Maria Martelo Ramos

doi:10.1016/S0167-2991(08)80132-2

Mesoporous silica containing sulfonic acid groups as catalysts for the alpha-pinene methoxylation

Isabel Maria de Figueiredo Ligeiro da Fonseca, Joaquim Silvério Marques Vital, Ana Maria Martelo Ramos

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

22 Citations (Scopus)

Abstract

The methoxylation of alpha-pinene was studied over sulfonic acid-functionalized mesoporous silica (MCM-41, PMO) at 60 degrees C. The support functionalization was achieved by the introduction of 3-(mercaptopropyl) trimethoxysilane onto the surface of these materials either by grafting or by co-condensation. The thiol groups were oxidized to SO(3)H by treatment with H(2)O(2). All the catalysts were active in the studied reaction being the PMO-SO(3)H-g the best one. Good values of selectivity to alpha-terpinyl methyl ether were obtained with these catalysts. Catalytic stability of the PMO-SO(3)H-g was evaluated by performing consecutive batch runs with the same catalyst sample. After the third batch it was observed a stabilisation of the activity.

Original language	Unknown
Title of host publication	Studies in Surface Science and Catalysis
Editors	A Gedeon, P Massiani, F Babonneau
Pages	1319-1322
Volume	174
DOIs	https://doi.org/10.1016/S0167-2991(08)80132-2
Publication status	Published - 1 Jan 2008
Event	4th Conference of the Federation of European Zeolite Associations (FEZA) - Duration: 1 Jan 2008 → …

Conference

Conference	4th Conference of the Federation of European Zeolite Associations (FEZA)
Period	1/01/08 → …

Access to Document

10.1016/S0167-2991(08)80132-2

Cite this

@inproceedings{d4f33fb36db54b4f923b2dacb751c1f3,

title = "Mesoporous silica containing sulfonic acid groups as catalysts for the alpha-pinene methoxylation",

abstract = "The methoxylation of alpha-pinene was studied over sulfonic acid-functionalized mesoporous silica (MCM-41, PMO) at 60 degrees C. The support functionalization was achieved by the introduction of 3-(mercaptopropyl) trimethoxysilane onto the surface of these materials either by grafting or by co-condensation. The thiol groups were oxidized to SO(3)H by treatment with H(2)O(2). All the catalysts were active in the studied reaction being the PMO-SO(3)H-g the best one. Good values of selectivity to alpha-terpinyl methyl ether were obtained with these catalysts. Catalytic stability of the PMO-SO(3)H-g was evaluated by performing consecutive batch runs with the same catalyst sample. After the third batch it was observed a stabilisation of the activity.",

keywords = "sulfonic acid groups, methoxylation, mesoporous silica, Alpha-pinene",

author = "Fonseca, \{Isabel Maria de Figueiredo Ligeiro da\} and Vital, \{Joaquim Silv{\'e}rio Marques\} and Ramos, \{Ana Maria Martelo\}",

year = "2008",

month = jan,

day = "1",

doi = "10.1016/S0167-2991(08)80132-2",

language = "Unknown",

volume = "174",

pages = "1319--1322",

editor = "A Gedeon and P Massiani and F Babonneau",

booktitle = "Studies in Surface Science and Catalysis",

note = "4th Conference of the Federation of European Zeolite Associations (FEZA) ; Conference date: 01-01-2008",

}

Fonseca, IMDFLD , Vital, JSM & Ramos, AMM 2008, Mesoporous silica containing sulfonic acid groups as catalysts for the alpha-pinene methoxylation. in A Gedeon, P Massiani & F Babonneau (eds), Studies in Surface Science and Catalysis. vol. 174, pp. 1319-1322, 4th Conference of the Federation of European Zeolite Associations (FEZA), 1/01/08. https://doi.org/10.1016/S0167-2991(08)80132-2

Mesoporous silica containing sulfonic acid groups as catalysts for the alpha-pinene methoxylation. / Fonseca, Isabel Maria de Figueiredo Ligeiro da ; Vital, Joaquim Silvério Marques ; Ramos, Ana Maria Martelo.
Studies in Surface Science and Catalysis. ed. / A Gedeon; P Massiani; F Babonneau. Vol. 174 2008. p. 1319-1322.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Mesoporous silica containing sulfonic acid groups as catalysts for the alpha-pinene methoxylation

AU - Fonseca, Isabel Maria de Figueiredo Ligeiro da

AU - Vital, Joaquim Silvério Marques

AU - Ramos, Ana Maria Martelo

PY - 2008/1/1

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N2 - The methoxylation of alpha-pinene was studied over sulfonic acid-functionalized mesoporous silica (MCM-41, PMO) at 60 degrees C. The support functionalization was achieved by the introduction of 3-(mercaptopropyl) trimethoxysilane onto the surface of these materials either by grafting or by co-condensation. The thiol groups were oxidized to SO(3)H by treatment with H(2)O(2). All the catalysts were active in the studied reaction being the PMO-SO(3)H-g the best one. Good values of selectivity to alpha-terpinyl methyl ether were obtained with these catalysts. Catalytic stability of the PMO-SO(3)H-g was evaluated by performing consecutive batch runs with the same catalyst sample. After the third batch it was observed a stabilisation of the activity.

AB - The methoxylation of alpha-pinene was studied over sulfonic acid-functionalized mesoporous silica (MCM-41, PMO) at 60 degrees C. The support functionalization was achieved by the introduction of 3-(mercaptopropyl) trimethoxysilane onto the surface of these materials either by grafting or by co-condensation. The thiol groups were oxidized to SO(3)H by treatment with H(2)O(2). All the catalysts were active in the studied reaction being the PMO-SO(3)H-g the best one. Good values of selectivity to alpha-terpinyl methyl ether were obtained with these catalysts. Catalytic stability of the PMO-SO(3)H-g was evaluated by performing consecutive batch runs with the same catalyst sample. After the third batch it was observed a stabilisation of the activity.

KW - sulfonic acid groups

KW - methoxylation

KW - mesoporous silica

KW - Alpha-pinene

U2 - 10.1016/S0167-2991(08)80132-2

DO - 10.1016/S0167-2991(08)80132-2

M3 - Conference contribution

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BT - Studies in Surface Science and Catalysis

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T2 - 4th Conference of the Federation of European Zeolite Associations (FEZA)

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