<i>N</i>-Hydroxyphthalimide (NHPI)/lead tetraacetate reactions with cyclic and acyclic alkenes
作者:Sergiu Coseri
DOI:10.1002/poc.1466
日期:2009.5
strong influence of lead tetraacetate (or CAN) on the NHPI's reactivity, induce two different channels for the reaction pathway, radical and non‐radical, a complex mixture of both saturated and unsaturated diadducts together with the corresponding monoadduct being formed. This behavior will not occur in the case of PINO generation in non‐metallic systems, in this case the reaction pathway proceed exclusively
进行了邻苯二甲酰亚胺N-氧基(PINO)自由基与环己烯,环辛烯和反式3-己烯的反应。PINO自由基是由其羟基酰亚胺母体N原位生成的-羟基邻苯二甲酰亚胺(NHPI),采用两种方法:使用金属盐,例如四乙酸铅和铈(IV)硝酸铵(CAN),以及“无金属”系统,其中金属成分由蒽醌承担。在前一种情况下,四乙酸铅(或CAN)对NHPI反应性的强烈影响,诱导了两种不同的反应途径,即自由基和非自由基,饱和和不饱和二加合物的复杂混合物以及相应的一元加合物形成。在非金属系统中生成PINO时不会发生这种情况,在这种情况下,反应途径仅通过自由基机理进行,并形成单加合物作为唯一产物。版权所有©2008 John Wiley&Sons,Ltd.