Модификация N-хлорполикапроамида трибутилфосфитом

The conditions of phosphorylation of N-chloro-2-oxoazepane and N-chloropolycaproamide fiber with tributylphosphite are found. The reaction is accompanied with the by-process of oxidation of tributylphosphite. Phosphorylated polycaproamide fiber is more thermoresistant than the starting N-chlorinated.