Methanol → 2,2-Dimethyl-4-((phenylmethoxy)methyl)-1,3-dioxolane

関与物質

反応条件

反応手順

To a 1000 ml round-bottom flask fitted with a thermometer, a nitrogen-introducing tube, and a stirrer were added 132.2 g (1.0 mol) of 2,2-dimethyl-1,3-dioxolane-4-methanol, 202.5 g (1.05 mol) of a 28% methanol solution of sodium methoxide, and 600 ml of toluene. With introducing nitrogen thereinto, the toluene was refluxed under reduced pressure for 1 hour to remove the methanol by distillation. With maintaining the solution at 80° C., 126.6 g (1.0 mol) of benzyl chloride was added dropwise over a period of 2 hours using a dropping funnel, followed by further 2 hours of reaction. After completion of the reaction, the temperature was lowered to 60° C. and 10 g of KYOWAAD 600 was added thereto, followed by 1 hour of stirring. The reaction liquid was filtrated, the solvent was removed, and the residue was purified by distillation (b.p. 93-95° C./266 Pa) to obtain 4-(benzyloxymethyl)-2,2-dimethyl-1,3-dioxolane.

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