Selectfluor-Promoted Intramolecular N–S Bond Formation of α-Carbamoyl Ketene Dithioacetals in the Presence of Water: Synthesis of Multifunctionalized Isothiazolones
作者:Zheng Liu、Youkun Wang、Jianfeng Huo、Xiao-Jun Li、Shengnan Li、Xiaoning Song
DOI:10.1021/acs.joc.0c03036
日期:2021.4.16
annulation of α-carbamoyl ketene dithioacetals has been developed in the presence of H2O and metal-free conditions. Notably, the experimental results reveal that H2O was crucial to the formation of new N–S bonds and the elimination of alkyl group from the sulfur atom. This protocol provides readily prepared substrates and possesses good functional group tolerance, mild reaction conditions, and operational
通过在H 2 O和无金属条件下,通过Selectfluor介导的α-氨基甲酰基烯酮二硫缩醛分子内氧化环化反应,实现了完全取代的异噻唑酮的实用有效方法。值得注意的是,实验结果表明,H 2 O对于形成新的N–S键和消除硫原子中的烷基至关重要。该方案提供了易于制备的底物,并具有良好的官能团耐受性,温和的反应条件和操作简便性,为药物化学中的应用提供了潜在途径。