草酰氯 、 二乙基羟胺 、 3,5-二叔丁基-4-羟基苯甲酸 在
petroleum ether 作用下,
以
三乙胺 为溶剂,
以to give 3.47 g of a white solid的产率得到O-(3,5-Di-tert-butyl-4-hydroxybenzyl)-N,N-diethylhydroxylamine
Substituted hydroxylamine ester stabilizers corresponding to the formula ##STR1## wherein n is 0-2, X is a direct bond, --S-- or --CH.sub.2 S--, R.sub.1 and R.sub.2 are independently hydrogen, alkyl, cycloalkyl, aralkyl, R.sub.3 and R.sub.4 are independently alkyl, cycloalkyl or aralkyl, and R.sub.5 is hydrogen or the group ##STR2## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.