| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel distillation method of an oxystyrene derivative that does not show defects in conventional methods. SOLUTION: The distillation method of an oxystyrene derivative represented by formula (I) (wherein, R represents an alkyl, a haloalkyl, a cycloalkyl, a cycloalkylalkyl, an aryl, especially a phenyl, an aralkyl, especially a benzyl, an alkoxyalkyl, an alkanoyl, an alkoxycarbonyl, an aralkyloxycarbonyl, or an alkylsilyl) is characterized by adding a garbinoxyl as a polymerization inhibitor into the oxystyrene derivative, followed by distillation in the presence of the polymerization inhibitor. This method prevents formation of polymeric materials with high viscosity during the distillation process and distills the oxystyrene derivative with high recovery rate.
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