Preparation of exo- and endocyclic aminoxyl radicals of 2-Amino-substituted quinazolin-4(3H)-ones
作者:Ladislav Omelka、Jan Světlik
DOI:10.1002/mrc.1260331015
日期:1995.10
2‐Amino‐substituted quinazolin‐4(3H)‐ones were oxidized with RO2· radicals and 4‐nitroperoxybenzoic acid. Two types of radical products, i.e. exo‐ and endocyclic aminoxyl radicals, were observed. Their differentiation was carried out on the basis of ESR parameters.
2-氨基取代的喹唑啉-4(3H)-酮被RO2·自由基和4-硝基过氧苯甲酸氧化。观察到两种类型的自由基产物,即外环和内环氨氧基自由基。它们的区分是基于 ESR 参数进行的。