| abstract |
【Task】 The isolation yield of 2-adamantanone is improved, and 2-adamantanone containing a small amount of resinous compound is produced. [Solution] Fuming sulfuric acid having a sulfur trioxide concentration of 0.01 to 10% by mass, preferably 0.05 to 9% by mass, of at least one raw material compound selected from the group consisting of adamantane, 1-adamantanol and 2-adamantanol Among them, for example, 2-adamantanone is produced by oxidation under conditions of a reaction temperature of 0 to 40 ° C. and a reaction time of 10 hours or more. [Selection figure] None |