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In a 100 ml flask equipped with a stirrer, a condenser and a calcium chloride dryer tube were charged 9.3 g of pyridine and 5.0 g of octadecyl p-toluenesulfonate, and the mixture was refluxed for 6 hours. After cooling the reaction mixture to room temperature, precipitated crystals were collected by filtration under reduced pressure. The resulting crystals were washed with acetone to obtain 5.9 g of the title compound. Melting point: 133*.

1. customIn a 100 ml flask equipped with a stirrer, a condenser and a calcium chloride dryer tube
2. temperaturethe mixture was refluxed for 6 hours
3. customprecipitated crystals
4. filtrationwere collected by filtration under reduced pressure
5. washThe resulting crystals were washed with acetone