反应详情

To a solution of 4-methyltetrahydro-2H-pyran-4-ol obtained in Example 7-1 in chloroacetonitrile (0.65 mL), was added a mixture of acetic acid and conc. sulfuric acid (1/1, 1.6 mL) dropwise with cooling on an ice bath. The reaction mixture was warmed to room temperature and stirred for 3 hrs.

1. temperaturewith cooling on an ice bath