Multicomponent Reductive Cross‐Coupling of an Inorganic Sulfur Dioxide Surrogate: Straightforward Construction of Diversely Functionalized Sulfones
作者:Yingying Meng、Ming Wang、Xuefeng Jiang
DOI:10.1002/anie.201911449
日期:2020.1.13
oxidants. Now, a multicomponent reductive cross-coupling involving an inorganic salt (sodium metabisulfite) for the straightforward construction of sulfones is disclosed. Both intramolecular and intermolecular reductive cross-couplings were comprehensively explored, and diverse sulfones were accessible from the corresponding alkyl and aryl halides. Intramolecular cyclic sulfones were systematically obtained
通常,砜是通过用强氧化剂氧化硫化物来制备的。现在,公开了一种涉及无机盐(偏亚硫酸氢钠)的多组分还原性交叉偶联,用于砜的直接构建。分子内和分子间的还原性交叉偶联都得到了全面的探索,并且可以从相应的烷基和芳基卤化物中获得各种砜。从五元至十二元环系统地获得分子内环砜。天然存在的脂族体系,例如类固醇,糖和氨基酸,与插入SO2的还原性交叉偶联高度相容。四个临床应用的药物分子,包括多个杂原子和带有活性氢的官能团,通过后期的SO2制备成功。机理研究表明,烷基基团和磺酰基基团均作为该转化的中间体。