Process for the synthesis of hindered polysubstituted α-amino acetamides by reaction of a secondary amine with an α-halo acetamide in a basic organic reaction medium and in the presence of a phase transfer catalyst. The product thus obtained can comprise a multifunctional compound having one or more hindered amino moieties. These compounds are highly effective as UV stabilizers in a variety of plastics, especially the alpha monoolefins.
在碱性有机反应介质中,在相转移催化剂存在下,通过仲胺与α-卤代乙酰胺反应合成受阻多取代α-
氨基乙酰胺的工艺。由此得到的产物可以是具有一个或多个受阻
氨基的多功能化合物。这些化合物在各种塑料,特别是α-单烯烃中作为紫外线稳定剂非常有效。