Abstract
A selective oxidation of primary alcohols to the corresponding aldehydes by shaking with chromium trioxide supported on aluminium silicate at room temperature under solvent free conditions is reported. This new procedure can also oxidise secondary alcohols.
Highlights
Considerable attention has been paid to the solvent free reactions [1]
It is not surprising that a large number of chromium (VI)-based oxidants impregnated on solid supports have been explored [6,7,8,9,10,11,12,13,14,15,16,17,18,19], almost all of these procedures are performed under heterogeneous conditions, or assisted by microwave irradiation
We have described a new reagent, chromium trioxide (CrO3) supported on aluminium silicate, for the heterogeneous selective oxidation of primary alcohols [16]
Summary
Considerable attention has been paid to the solvent free reactions [1]. These are of interest from an ecological point of view, but in many cases they offer considerable synthetic advantages in terms of yields, selectivity and simplicity of the reaction procedures. One of the most important reactions of alcohols, which have long been the objective of many research papers, is their oxidation to the corresponding carbonyl compounds.
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