EFFECT OF ULTRASOUND ON KSF O MEDIATED GLYCOSYLATIONS/

The catalysis of the glycosylation reaction (Fischer) by acidic clays, and in particular the montmorillonite KSF/O, was studied in the case of the glucosylation of butanol and dodecanol. The catalysis was shown to be mostly homogeneous, involving an acidity transfer from the soli d to the alcoholic phase. Ultrasound promoted an intensification of th is phenomenon leading to an increase of the conversion rate of glucose , which, in the case of dodecanol, gave rise to high yields of oligome ric species (mostly 1,6-polyglucose).