<sup>18</sup>O-Tracer Studies of Fe(II)-Induced Decomposition of 1,2,4-Trioxolanes (Ozonides) Derived from Cyclopentenes and Indenes. Inner-Sphere Electron Transfer Reduction of the Peroxide Linkage
作者:Manabu Abe、Tomoyasu Inakazu、Johichi Munakata、Masatomo Nojima
DOI:10.1021/ja990807v
日期:1999.7.1
Fe(II)-induced decomposition of 1,2,4-trioxolanes (ozonides) 1 and 2 is studied in detail. The inner-sphere electron transfer reduction, which is sensitive to steric effects, is proposed to be a reasonable mechanism for the peroxide decomposition, i.e., the selective generation of one of the two possible Fe(III)-complexed oxy radicals. The fate of the oxy radical species is revealed in detail by using
详细研究了 Fe(II) 诱导的 1,2,4-三氧戊环(臭氧化物)1 和 2 的分解。对空间效应敏感的球内电子转移还原被认为是过氧化物分解的合理机制,即选择性生成两种可能的 Fe(III) 络合氧自由基之一。通过在 18O 标记的臭氧化物 1a 和 2a 的还原中使用 18O 示踪剂研究详细揭示了氧自由基物种的命运,其中醚氧被 18O 原子(18O,77%)标记,并且还通过还原在 H218O (18O, 10%) 存在下。18O 示踪剂研究的结果与 Fe(III) 络合氧自由基物种的区域选择性生成一致。