反应详情

3rd stage: In sequence, 27 g of pulverulent potassium hydroxide, 27 ml of methyl iodide and 2.7 g of tetrabutyl-ammonium-hydrogen-sulfate are added to a solution of 13.5 g of 4-hydroxymethyl-1-tosylindole in 400 ml of methylene chloride. The substance is strongly agitated for 24 h. Then, it is filtered off of the potassium hydroxide, washed neutral with water, and the solvent is distilled off. The raw product (16.46 g) is crystallized out of diisopropylether. 12.2 g of 4-methoxymethyl-1-tosylindole with a m.p. of 85.5°-89° C. is obtained.

1. filtrationThen, it is filtered off of the potassium hydroxide
2. washwashed neutral with water
3. distillationthe solvent is distilled off
4. customThe raw product (16.46 g) is crystallized out of diisopropylether