Sterically hindered N-substituted aryloxyamines are prepared by the Keggin polyoxometalate or the transition metal substituted polyoxometalate (TMS-POM) catalyzed decomposition of diazonium salts in the presence of a sterically hindered nitoxyl radical. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.
通过Keggin多酸或过渡
金属取代多酸(TMS-POM)催化的重氮盐在有立体阻碍的亚硝基自由基存在下分解制备出有立体阻碍的N-取代芳氧胺化合物。这些化合物可用作各种有机基质的热稳定剂和
光稳定剂。