<scp>Copper‐Catalyzed</scp>
Aerobic Oxidative Cleavage of Unstrained
<scp>Carbon‐Carbon</scp>
Bonds of 1,
<scp>1‐Disubstituted</scp>
Alkenes with Sulfonyl Hydrazides
作者:Dong Yi、Linying He、Zhongyu Qi、Zhijie Zhang、Mengshun Li、Ji Lu、Jun Wei、Xi Du、Qiang Fu、Siping Wei
DOI:10.1002/cjoc.202000549
日期:2021.4
carbon‐carbon bond cleavages have emerged as a powerful strategy to complement traditional ionic‐type transformations. However, carbon‐carbon cleavage reaction triggered by alkoxy radical intermediate derived from the combination of alkyl radical and dioxygen, is scarce and underdeveloped. Herein, we report alkoxy radical, which was generated from alkyl radical and dioxygen, mediated selective cleavage of unstrained
烷氧基自由基介导的碳-碳键裂解已成为补充传统离子型转化的有力策略。然而,由烷基自由基和双氧结合产生的烷氧基自由基中间体引发的碳-碳裂解反应是稀缺的,并且发展不充分。本文中,我们报道了由烷基自由基和双氧生成的烷氧基自由基,介导了1,1-二取代烯烃的氧磺酰化作用的未应变碳-碳键的选择性裂解,可轻松获得各种有价值的β-酮砜。机理实验表明,烷氧基自由基中间体可能随后参与区域选择性β断裂反应,并进行了初步计算研究,以详细解释CC键断裂的区域选择性。值得注意的是,该策略已成功应用于构建不易获得的具有建筑吸引力的分子。