Inorganic base promoted highly selective N-hydroxymethylation of indole and its derivatives have been developed. It provided a simple method for the preparation of N-hydroxymethyl indoles with polyformaldehyde as reagents under the metal- and Lewis acid-free reaction conditions. The reaction proceeded smoothly using K<sub>2</sub>CO<sub>3</sub> as base in 1,4-dioxane to produce the corresponding N-hydroxymethyl indoles with 62%->99% yields.
已完成。无机碱促进的高选择性吲哚及其衍生物的N-羟甲基化已经开发出来。它提供了一种简单的方法,使用聚甲醛作为试剂,在无金属和Lewis酸的反应条件下制备N-羟甲基吲哚。该反应在1,4-二氧六环中使用K2CO3作为碱,产生相应的N-羟甲基吲哚,收率为62%到99%。