am和三嗪的钾化产生相应的a基钾和三叠氮化钾。mid胺配体的偏爱构型是(syn-E)-形式,而所有已知的三叠氮化物都采用这种异构形式。mid基配体上的极其庞大的基团通过钾和N键合的芳基之间的π相互作用而增强了抗构型。已经观察到N'-键合2-吡啶基乙基取代基的特殊情况。在中等张力的am中,1,3-二氮杂烯丙基部分被去质子化,而在高度拥挤的am中,乙烯片段被钾化,引起脱酰胺作用和2-吡啶基乙烯的消除。(syn-E的钾盐)-a基异构体和三氮叠氮化物包含一个中心八面体K 2 N 4笼,该笼由于附接的大体积取代基的空间要求而可能严重变形。
[EN] BENZYLFORMAMIDINE COMPOUNDS AND PLASTIC PRODUCTS CONTAINING THE BENZYLFORMAMIDINE COMPOUNDS AS ULTRAVIOLET LIGHT ABSORBERS<br/>[FR] COMPOSES DE BENZYLFORMAMIDINE ET PRODUITS DE PLASTIQUE CONTENANT CES COMPOSES DE BENZYLFORMAMIDINE COMME AGENTS D'ABSORPTION DES ULTRAVIOLETS
申请人:ZIKO LTD
公开号:WO2005115973A1
公开(公告)日:2005-12-08
Disclosed herein is a benzylformamidine compound having high ultraviolet light absorption and superior thermal stability that can be suitably used as an ultraviolet light absorber for plastic products which undergo high-temperature treatment or require superior thermal stability. Further disclosed is a plastic product containing the benzylformamidine compound as an ultraviolet light absorber.