Catalytic materials for selective oxidation of alcohols, process for production thereof and their use in alcohol oxidation process

US6797773B1 · kind B1 · utility

Assignees

• CONSIGLIO NAZIONALE DELLE RICERCHE · IT
• YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD. · IL

Inventors

• Mario Pagliaro · Palermo, IT
• David Avnir · Jerusalem, IL
• Giulio Deganello · Palermo, IT
• Jochanan Blum · Jerusalem, IL

Key dates

• Filing date: Nov 15, 2000
• Grant date: Sep 28, 2004
• Expiry date: Nov 15, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07H3/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A versatile methodology to obtain efficient catalytic materials suitable for selective, liquid-phase oxidations of alcohols is described. Solid inorganic membranes were prepared by the sol-gel procedure by adding a solution of stable organic nitroxyl radicals at the onset of the polymerization of silicon alkoxide monomers. In this way, micro- and mesoporous materials can be obtained that axe effective and recyclable catalytic mediators for highly selective oxidations of a vast class of primary and secondary alcohols carried out with several primary oxidants. Delicate substrates such as carbohydrates and allylic alcohols can selectively be oxidized with these novel catalytic materials.