| abstract |
Disclosed is a method for preparing 1-adamantyltrimethylammonium methyl carbonate or N, N-dimethyl-3,5-dimethylpiperidinium methyl carbonate. The method comprises reacting dimethyl carbonate with a 3,5-dimethylpiperidine or 1-adamantylamine compound in a sealed vessel at a temperature of 80 to 200 ° C. in the presence of water. The 1-adamantylamine compound is 1-adamantylamine, 1-adamantylmethylamine, or a mixture thereof. [Selection figure] None |