| abstract |
There is a process for acetylating diamines with a stericnhindered amine function and another sterically not hinderednAmine function provided, the acetylation at the steric notnhindered amine function takes place, and the diamine is reacted with ketenenbecomes. The preferred diamine is 4-amino-2,2,6,6-tetramethyl-piperidine (TAD). |