Formaldehyde → Syringic alcohol

Beteiligte Stoffe

Reaktionsschritte

310 g of 2,6-dimethoxyphenol, 300 g of 38 wt% formalin, and 810 g of 10% wt% aqueous sodium hydroxide were reacted for 60 hours at 25° C. under a pressure of 0 kg/cm2 -G, the reaction mixture was and then neutralized with sulfuric acid, to obtain 80 g of 2,6-dimethoxy-4-(hydroxymethyl)phenol. (Yield: 22 mol%) 25 g of the obtained 2,6-dimethoxy-4-(hydroxymethyl)phenol was reacted in 320 ml of methanol in the presence of 0.375 wt% of platinum-alumina catalyst and hydrogen for 4 hours at 200° C. at 199 kg/cm2 -G, and 15 g of 2,6-dimethoxy-4-methylphenol was obtained. (Yield: 66 mol%) The yield on the basis of the amount of the raw material was 15 mol%.

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