A novel OXONE® mediated direct difunctionalization of alkenes with NaNO2 in aqueous acetonitrile for the synthesis of α-nitrooximes was developed. The α-nitrooximes were readily prepared in moderate to high yields at room temperature under mild reaction conditions. The present protocol offers an easy and environmentally benign approach to access various α-nitrooximes derived from styrene derivatives.
Synthesis of <font>α</font>-Nitro Ketoximes from Styrenes and <i>tert</i>-Butyl Nitrite
作者:Qi Cao、Jidan Liu、Lin Yu、Qingwen Gui、Xiang Chen、Ze Tan
DOI:10.1080/00397911.2015.1062988
日期:2015.10.2
We have discovered that various -nitro ketoximes can be synthesized in good yields starting from styrenes and tert-butyl nitrite. The success of the reaction was critically dependent on the use of a mixture solvent of dimethylsulfoxide and water. The reaction can tolerate a wide variety of substituents including electron-withdrawing and electron-donating groups.
Nitration-Oximization of Styrene Derivatives with<i>tert</i>-Butyl Nitrite: Synthesis of<i>α</i>-Nitrooximes
method offers a convenient and practical approach for the synthesis of α‐nitrooximes in moderate to high yields. The salient features entail mild reaction conditions, metal‐free reagent, environmentallybenignsolvent and simple experimental procedure.