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...
Iron-Catalyzed Regioselective Oxo- and Hydroxy-Phthalimidation of Styrenes: Access to α-Hydroxyphthalimide Ketones
作者:Ji-zong Zhang、Yu Tang
DOI:10.1002/adsc.201500732
日期:2016.3.3
This paper describes the aerobic oxidation of styrenes catalyzed by iron(III) chloride (FeCl3) to form β‐keto‐N‐alkoxyphthalimides in fair to good yields. This oxidative process employs mild conditions with green and atom efficient dioxygen (O2) as the oxidant.
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