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Osmium impregnated on magnetite as a heterogeneous catalyst for the syn-dihydroxylation of alkenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
39991 45842 2014 6 PDF Available
Title
Osmium impregnated on magnetite as a heterogeneous catalyst for the syn-dihydroxylation of alkenes
Abstract

•Easy preparation of a novel magnetic nanocatalyst.•Simple catalyst removing by an external magnetic field.•The lowest catalyst loading reported for this transformation.•The use of complicated and expensive organic ligands, used in related processes, is avoided.

A new catalyst derived from osmium has been prepared, fully characterized and tested in the dihydroxylation of alkenes. The catalyst was prepared by wet impregnation methodology of OsCl3·3H2O on a commercial micro-magnetite surface. The catalyst allowed the reaction with one of the lowest osmium loadings for a heterogeneous catalyst and was selective for the monodihydroxylation of 1,5-dienes. Moreover, the catalyst was easily removed from the reaction medium by the simple use of a magnet. The selectivity of catalyst is very high with conversions up to 99%. Preliminary kinetics studies showed a first-order reaction rate with respect to the catalyst.

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Keywords
Heterogeneous catalyst; Dihydroxylation process; Magnetite; Osmium oxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 470, 30 January 2014, Pages 177–182
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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