Copper(I)-Catalyzed Oxidation of Alkenes Using Molecular Oxygen and Hydroxylamines: Synthesis and Reactivity of α-Oxygenated Ketones
作者:Alexander A. Andia、Matthew R. Miner、K. A. Woerpel
DOI:10.1021/acs.orglett.5b01120
日期:2015.6.5
The copper(I)-catalyzed oxidation of alkenes with molecularoxygen and N-hydroxyphthalimide (NHPI) or N-hydroxybenzotriazole (HOBt) provided α-oxygenated ketones. The reaction proceeded under a balloon of O2 at room temperature to furnish the dioxygenated products in 50–90% yield. These compounds, particularly the HOBt derivatives, can be further functionalized with phosphorus, nitrogen, and sulfur
A practical and simple selectfluor mediated highly selectiveradical dioxygenation of alkenes was achieved under mild conditions. Various hydroxylamines, such as N-Hydroxyphthalimide (NHPI), N-hydroxybenzotriazole (HOBt) and N-hydroxysuccinimide (NHSI), could react...
Electrochemical Oxidative Difunctionalization of Alkenes to Access α-Oxygenated Ketones
作者:Changhui Dai、Yijie Shen、Yifan Wei、Ping Liu、Peipei Sun
DOI:10.1021/acs.joc.1c01831
日期:2021.10.1
Dioxygenation of alkenes was developed by the combination of electrochemical synthesis and aerobic oxidation, leading to easy accessibility of α-oxygenated ketones in an eco-friendly fashion. Using air as the oxygen source and the absence of transition metals were the critical features of this protocol. A wide range of alkenes and N-hydroxyimides were found to be compatible and provided α-oxygenated