手性路易斯碱/布朗斯特酸协同催化策略在有机硫化物不对称合成中的应用

Application of Chiral Lewis Base/BrØnsted Acid Synergistic Catalysis Strategy in Enantioselective Synthesis of Organic Sulfides

手性含硫化合物不仅是有机合成领域重要的中间体和催化剂,许多天然产物和临床药物也都是手性含硫化合物.因此,发展手性含硫化合物的高效合成方法一直是有机合成化学的重要研究课题,其中不对称亲电硫化反应近年来受到化学家的广泛关注.氢键相互作用可以在化合物的生成过程中提供很高的灵活性,已经逐渐成为不对称催化中的有力工具.受此启发,本课题组开发了一类基于氢键相互作用的路易斯碱/布朗斯特酸协同催化策略,并成功将其应用于多种类型烯烃的分子内和分子间的不对称芳硫基化反应,以及芳基化合物的不对称芳硫基取代反应,高效地合成了各种手性含硫化合物.总结了我们课题组利用基于氢键相互作用的路易斯碱/布朗斯特酸协同催化策略在不对称亲电芳硫基化反应中的研究进展,并对其未来发展进行了展望.

Chiral organosulfur compounds are not only important synthetic intermediates and catalysts in the field of organic synthesis, but also widely exist in many natural products and clinical drugs. The development of efficient synthesis of chiral organosulfur compounds has always been an important research topic in organic synthetic chemistry, in which enantioselective electrophilic sulfenylation reactions have attracted significant attention in recent years. Hydrogen bond interactions provide much flexibility in the preorganization of compounds and have gradually become a powerful tool in asymmetric catalysis.Inspired from this, our group developed a type of Lewis base/BrØnsted acid synergistic catalysis strategy based on the hydrogen bonding interaction, and successfully applied it to intra-and inter-molecular asymmetric sulfenylation of different kinds of alkenes, and enantioselective sulfenylation substitution reactions of aryl compounds. A variety of chiral organosulfur compounds were obtained with high efficiency. The recent advances of enantioselective electrophilic arylthiolation reactions using novel synergistic catalysis strategy developed by our group are summarized, and the prospect of this research topic is also discussed.