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Efficient and highly selective aqueous oxidation of alcohols catalyzed by copper (II) phthalocyanine nanoparicles
Paper ID : 2248-UFGNSM13-FULL
Authors:
Abstract:
Oxidation reactions are among the most important transformations in synthetic chemistry and offer important methodology for the introduction and modification of functional groups. During the last two decades, there has been a spectacular development in the field and a large number of novel and useful oxidation reactions have been discovered. The oxidation of alkyl arenes and alcohols to their corresponding carbonyl compounds is of significant importance in organic chemistry, both for fundamental research and industrial manufacturing. The world-wide annual production of carbonyl compounds is over 1×107 tones and most of these compounds are produced from the oxidation of alkyl arenes and alcohols.
Phthalocyanine transition metal complexes as important industrial pigments have been considered as potential oxidation catalysts because of their rather cheap and facile preparation in a large scale and in particularly their chemical and thermal stabilities. However, the low solubility of metallophthalocyanines is perhaps the most significant limitation in their application as catalysts. It may be overcome by using metallophthalocyanines nanoparticles instead of metallophthalocyanines. In this study aqueous oxidation of alcohols to the corresponding carbonyl compounds (aldehyde and ketones) was developed using a catalytic system consisting copper (II) phthalocyanine nanoparicles in neat water. Organic cosolvents, surfactants, co-catalyst were completely missed in this homogenous catalytic strategy.
Keywords:
metallophthalocyanines-nanoparticles -Oxidation
Status : Paper Accepted (Poster Presentation)