Methanol → Methyl glucoside

Participants

Reaction Steps

In an autoclave of 300 cc volume, 50 g of anhydrous crystalline glucose, 5 g of perfluorosulfonic acid resin ("NAFION" powder 511) and 133 g of methyl alcohol were charged. The reaction was effected at 120° C.±1° C. for 30 minutes while stirring at 600 r.p.m. The gauge pressure was 6.0 Kg/cm2. After cooling to room temperature, NAFION was separated by filtration whereby a colorless, transparent methanolic solution was obtained. By adding water and evaporating methanol at 40° C. under reduced pressure, an aqueous methyl glucoside solution was obtained. The aqueous solution was essentially colorless and transparent and 53.6 g of solid matters were contained therein. By liquid chromatography and enzymatic method, the composition of the solid matters was found to be the following:

Provenance & Evidence