Several benzo[d]-1,2-oxaphosphole 2-oxides were examined as potential precursors of stabilized C-centered radicals. The transient absorption spectra obtained after laser flash photolysis in the presence of di-tert-butyl peroxide showed the features of benzylic radicals with formation and decay kinetics not significantly influenced by the presence of oxygen. In the case of compounds with two possible diastereomeric
[反应:见正文]研究了几种苯并[d] -1,2-氧
磷2-氧化物作为稳定的C-中心自由基的潜在前体。在
过氧化二叔丁基存在下进行激光闪光光解后获得的瞬态吸收光谱显示出苄基自由基的特征,其形成和衰变动力学不受氧的存在显着影响。在具有两种可能的非对映异构形式的化合物的情况下,[校正的]反式异构体的CH键对氢的夺取更具反应性。