反应详情

A catalytic amount (2 drops) of phosphorus oxytrichloride was added to 10 ml of an ethereal solution containing 277 mg of 3-chloro-1-(4-fluorophenyl)propanol and 330 mg of 2-(4-acetamidophenoxymethyl)-3,4-dihydro-2H-pyran and the mixture was allowed to react at room temperature for 8 days. The precipitated crystals were separated by filtration, giving 240 mg of the isomer of lesser polarity of the title compound, melting at 133°-135° C.

1. customto react at room temperature for 8 days
2. customThe precipitated crystals were separated by filtration