反应详情

To a mixture of anisole (216 g) and terephtalic acid-methyl ester-chloride (99 g) was added aluminium chloride (200 g) at 0° C. in an amount of 1/3 to 1/4 at a time. In that case, temperature was kept to 25° C. or less, and it took from 45 minutes to 1 hour for addition. The temperature returned to room temperature after 30 minutes from termination of addition, and after stirring for 1.5 hours to 2 hours, the pink colored precipitate was obtained by pouring ice-water. The precipitate was separated by filtration, dried with water and washed with methanol. Methanol washings were concentrated under reduced pressure, and washed with a small amount of methanol to give the title compound.

1. customwas kept to 25° C. or less
2. additionit took from 45 minutes to 1 hour for addition
3. additionThe temperature returned to room temperature after 30 minutes from termination of addition
4. customthe pink colored precipitate was obtained
5. customThe precipitate was separated by filtration
6. dry with materialdried with water
7. washwashed with methanol
8. concentrationMethanol washings were concentrated under reduced pressure
9. washwashed with a small amount of methanol