Abstract
A simple and efficient method is reported for rapid chemoselective transformation of 1,1-diacetates to the parent aldehydes using 1,3-dibromo-5,5-dimethylhy- dantoin or N-bromosuccinimide in the presence of wet SiO2 (50%, w/w) as solid support under solvent-free con- ditions at room temperature. This procedure has valuable advantages, for example short reaction times, simple work- up, high yields of products, absence of solvent, and use of commercially available and non-toxic reagents.
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