A process for the preparation of Schiff's bases which contain amino groups, of the formula ##STR1## wherein n is 3 to 12, by reacting cyclic lactams of the formula ##STR2## wherein n is 3 to 12, or of their ring-opened polymers of the formula ##STR3## wherein n is 3 to 12 and m is 1 to 100,000, with inorganic bases at elevated temperature, the reaction being carried out in the presence of inert, high-boiling suspending agents.
一种制备含有
氨基的席夫碱的方法,其
化学式为##STR1##其中n为3至12,通过在升高温度下与
无机碱反应环状内酰胺的
化学式##STR2##其中n为3至12,或其开环聚合物的
化学式##STR3##其中n为3至12,m为1至100,000,反应在惰性、高沸点的悬浮剂存在下进行。