Donor–Acceptor Complex Enables Alkoxyl Radical Generation for Metal‐Free C(sp
<sup>3</sup>
)–C(sp
<sup>3</sup>
) Cleavage and Allylation/Alkenylation
作者:Jing Zhang、Yang Li、Ruoyu Xu、Yiyun Chen
DOI:10.1002/anie.201707171
日期:2017.10.2
The alkoxyl radical is an essential and prevalent reactive intermediate for chemical and biological studies. Here we report the first donor–acceptor complex‐enabled alkoxyl radical generation under metal‐free reaction conditions induced by visible light. Hantzsch ester forms the key donor–acceptor complex with N‐alkoxyl derivatives, which is elucidated by a series of spectrometry and mechanistic experiments
烷氧基是化学和生物学研究必不可少的,普遍的反应性中间体。在这里,我们报告了在可见光诱导的无金属反应条件下,第一批供体-受体配合物使能的烷氧基自由基的产生。Hantzsch酯与N烷氧基衍生物形成了关键的供体-受体配合物,这一点已通过一系列光谱学和机理实验得以阐明。首次使用这种无光催化剂的方法对线性的伯,仲和叔烷氧基进行了选择性的C(sp 3)-C(sp 3)键裂解和烯丙基化/烯基化反应。