Catalytic hydrogenolysis of aromatic ketones by a sol-gel entrapped combined Pd-[Rh(cod)Cl]2 catalyst

Raed Abu-Reziq; David Avnir; Jochanan Blum

doi:10.1016/S1381-1169(02)00235-2

Catalytic hydrogenolysis of aromatic ketones by a sol-gel entrapped combined Pd-[Rh(cod)Cl]₂ catalyst

Raed Abu-Reziq
, David Avnir^*
, Jochanan Blum

^*Corresponding author for this work

Institute of Chemistry

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

34 Scopus citations

Abstract

Co-entrapment of palladium nanoparticles and soluble [Rh(cod)(μ-Cl)]₂ in a silica sol-gel matrix forms a catalyst that promotes exhaustive hydrogenation and hydrogenolysis of various aromatic ketones. While the hydrogenation of acetophenone may proceed by initial formation of α-phenylethanol followed by dehydration to styrene and further reduction of the olefinic and aromatic C-C bonds, the reaction of benzophenone and related compounds does not involve the intermediary of a carbinol. The immobilized combined catalyst is leach-proof and perfectly recyclable in at least five consecutive runs. Its unique catalytic activity is attributed to a synergistic effect between the different metal atoms.

Original language	English
Pages (from-to)	277-281
Number of pages	5
Journal	Journal of Molecular Catalysis A: Chemical
Volume	187
Issue number	2
DOIs	https://doi.org/10.1016/S1381-1169(02)00235-2
State	Published - 18 Sep 2002

Bibliographical note

Funding Information:
We thank the Israel Science Foundation for financial support of this study through Grant nos. 143/00-12.0 and 96/98-2 and the Ministry of Science Art and Sport for support through the Tashtiot Project.

Keywords

Hydrogenation
Ketones
Palladium
Rhodium
Sol-gel

Access to Document

10.1016/S1381-1169(02)00235-2

Cite this

@article{83eff00f57e24fd1bf4d4433eec56045,

title = "Catalytic hydrogenolysis of aromatic ketones by a sol-gel entrapped combined Pd-[Rh(cod)Cl]2 catalyst",

abstract = "Co-entrapment of palladium nanoparticles and soluble [Rh(cod)(μ-Cl)]2 in a silica sol-gel matrix forms a catalyst that promotes exhaustive hydrogenation and hydrogenolysis of various aromatic ketones. While the hydrogenation of acetophenone may proceed by initial formation of α-phenylethanol followed by dehydration to styrene and further reduction of the olefinic and aromatic C-C bonds, the reaction of benzophenone and related compounds does not involve the intermediary of a carbinol. The immobilized combined catalyst is leach-proof and perfectly recyclable in at least five consecutive runs. Its unique catalytic activity is attributed to a synergistic effect between the different metal atoms.",

keywords = "Hydrogenation, Ketones, Palladium, Rhodium, Sol-gel",

author = "Raed Abu-Reziq and David Avnir and Jochanan Blum",

note = "Funding Information: We thank the Israel Science Foundation for financial support of this study through Grant nos. 143/00-12.0 and 96/98-2 and the Ministry of Science Art and Sport for support through the Tashtiot Project.",

year = "2002",

month = sep,

day = "18",

doi = "10.1016/S1381-1169(02)00235-2",

language = "אנגלית",

volume = "187",

pages = "277--281",

journal = "Journal of Molecular Catalysis A: Chemical",

issn = "1381-1169",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Catalytic hydrogenolysis of aromatic ketones by a sol-gel entrapped combined Pd-[Rh(cod)Cl]2 catalyst

AU - Abu-Reziq, Raed

AU - Avnir, David

AU - Blum, Jochanan

N1 - Funding Information: We thank the Israel Science Foundation for financial support of this study through Grant nos. 143/00-12.0 and 96/98-2 and the Ministry of Science Art and Sport for support through the Tashtiot Project.

PY - 2002/9/18

Y1 - 2002/9/18

N2 - Co-entrapment of palladium nanoparticles and soluble [Rh(cod)(μ-Cl)]2 in a silica sol-gel matrix forms a catalyst that promotes exhaustive hydrogenation and hydrogenolysis of various aromatic ketones. While the hydrogenation of acetophenone may proceed by initial formation of α-phenylethanol followed by dehydration to styrene and further reduction of the olefinic and aromatic C-C bonds, the reaction of benzophenone and related compounds does not involve the intermediary of a carbinol. The immobilized combined catalyst is leach-proof and perfectly recyclable in at least five consecutive runs. Its unique catalytic activity is attributed to a synergistic effect between the different metal atoms.

AB - Co-entrapment of palladium nanoparticles and soluble [Rh(cod)(μ-Cl)]2 in a silica sol-gel matrix forms a catalyst that promotes exhaustive hydrogenation and hydrogenolysis of various aromatic ketones. While the hydrogenation of acetophenone may proceed by initial formation of α-phenylethanol followed by dehydration to styrene and further reduction of the olefinic and aromatic C-C bonds, the reaction of benzophenone and related compounds does not involve the intermediary of a carbinol. The immobilized combined catalyst is leach-proof and perfectly recyclable in at least five consecutive runs. Its unique catalytic activity is attributed to a synergistic effect between the different metal atoms.

KW - Hydrogenation

KW - Ketones

KW - Palladium

KW - Rhodium

KW - Sol-gel

UR - https://www.scopus.com/pages/publications/0037130616

U2 - 10.1016/S1381-1169(02)00235-2

DO - 10.1016/S1381-1169(02)00235-2

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0037130616

SN - 1381-1169

VL - 187

SP - 277

EP - 281

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 2

ER -