Synthesis of Chiral Polyhydroxylated Benzimidazoles by a Tandem Radical Fragmentation/Cyclization Reaction: A Straight Avenue to Fused Aromatic-Carbohydrate Hybrids
作者:Emy André-Joyaux、Andrés G. Santana、Concepción C. González
DOI:10.1021/acs.joc.8b01988
日期:2019.1.18
The synthesis of benzimidazole-fused iminosugars through a tandem β-fragmentation-intramolecular cyclizationreaction is described. The use of the benzimidazole ring as the internal nucleophile and the use of phenyliodosophthalate (PhI(Phth)), a new metal-free and low toxic hypervalent iodine reagent, are the most remarkable novelties of this synthetic strategy. With this approach, we have demonstrated
描述了通过串联β-片段化-分子内环化反应合成苯并咪唑融合的亚氨基糖。使用苯并咪唑环作为内部亲核试剂以及使用苯基碘代邻苯二甲酸酯(PhI(Phth))(一种无金属,低毒性的高价碘新试剂),是该合成策略最显着的新颖之处。通过这种方法,我们已经证明了由PhI(Phth)/ I 2系统促进的异头烷氧基自由基断裂对于制备新化合物的用途,这对于医学和合成化学家均具有潜在的意义。