Visible-Light-Driven Selective Alkenyl C–P Bond Cleavage of Allenylphosphine Oxides
作者:Kai Wei、Kai Luo、Fang Liu、Lei Wu、Li-Zhu Wu
DOI:10.1021/acs.orglett.9b00071
日期:2019.4.5
irradiation, was developed. This novel protocol involves a highly regioselective radical pathway initiated by singlet oxygen, affording diverse alkynyl phosphinates with good-to-excellent yields. Mechanistic studies and density functional theory calculations suggested an intramolecular process involving phosphorus migration, instead of phosphorus radical formation, at the early stage of the reaction
开发了一种有效的方法,该方法可通过有机染料和可见光照射实现高选择性烯基C-P键裂解。该新方案涉及由单线态氧引发的高度区域选择性自由基途径,可提供具有良好至优异收率的多种炔基次膦酸酯。机理研究和密度泛函理论计算表明,在反应的早期,涉及磷迁移而不是磷自由基形成的分子内过程。