New p-benzoquinones were obtained by oxidation of catechin and epicatechin derivatives with the hydrogen peroxide/methyltrioxorhenium catalytic system. Reactions were carried out both in homogeneous and heterogeneous conditions and proceeded with high conversion and moderate yields. Polymer-supported methyltrioxorhenium systems were used as heterogeneous catalysts. After the first oxidation, the catalytic systems can be recovered and reused for five consecutive times without loss of stability and efficiency. (c) 2005 Elsevier Ltd. All rights reserved.

Catalytic oxidation of catechins to p-benzoquinones with hydrogen peroxide/methyltrioxorhenium / Roberta, Bernini; Enrico, Mincione; Gianfranco, Provenzano; Fabrizi, Giancarlo. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - 46:17(2005), pp. 2993-2996. [10.1016/j.tetlet.2005.03.032]

Catalytic oxidation of catechins to p-benzoquinones with hydrogen peroxide/methyltrioxorhenium

FABRIZI, Giancarlo
2005

Abstract

New p-benzoquinones were obtained by oxidation of catechin and epicatechin derivatives with the hydrogen peroxide/methyltrioxorhenium catalytic system. Reactions were carried out both in homogeneous and heterogeneous conditions and proceeded with high conversion and moderate yields. Polymer-supported methyltrioxorhenium systems were used as heterogeneous catalysts. After the first oxidation, the catalytic systems can be recovered and reused for five consecutive times without loss of stability and efficiency. (c) 2005 Elsevier Ltd. All rights reserved.
2005
agroindustrial wastes; catalytic oxidations; catechins; hydrogen peroxide/methyltrioxorhenium; p-benzoquinones; renewable sources; winery by-products
01 Pubblicazione su rivista::01a Articolo in rivista
Catalytic oxidation of catechins to p-benzoquinones with hydrogen peroxide/methyltrioxorhenium / Roberta, Bernini; Enrico, Mincione; Gianfranco, Provenzano; Fabrizi, Giancarlo. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - 46:17(2005), pp. 2993-2996. [10.1016/j.tetlet.2005.03.032]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/72202
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