Transition Metal Substituted Polyoxotungstates in the Catalytic Oxidation of 1H-Indene and 1,2-Dihydronaphthalene with Hydrogen Peroxide

resumo

The oxidation of 1H-indene and 1,2-dihydronaphthalene with hydrogen peroxide in the presence of Mn(III) or Fe(III) substituted Keggin-type polyoxotungstates is described. The products obtained depend on the catalyst and reaction conditions. Ring cleavage was observed, affording dialdehydes under mild and environmentally friendly conditions. Other main products were the alpha-hydroxy-ketones. The resulting epoxides seem to be intermediates to other oxygenated products.

palavras-chave

KEGGIN-TYPE POLYOXOTUNGSTATES; STEP ALKENE CLEAVAGE; NONFUNCTIONALIZED ALKENES; ASYMMETRIC EPOXIDATION; HETEROPOLY ACIDS; ARYL ALKENES; COMPLEXES; CHEMISTRY; TUNGSTOPHOSPHATES; CYCLOALKANES

categoria

Chemistry

autores

Estrada, AC; Simoes, MMQ; Santos, ICMS; Neves, MGPMS; Silva, AMS; Cavaleiro, JAS; Cavaleiro, AMV

nossos autores

agradecimentos

Thanks are due to the University of Aveiro, FCT (Fundacao para a Ciencia e a Tecnologia) and FEDER for funding the Organic Chemistry Research Unity and CICECO. A. C. E. and I. C. M. S. S. also thank FCT for their grants.

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