Hypervalent Iodine(III)-Promoted Metal-Free S-H Activation: An Approach for the Construction of S-S, S-N, and S-C Bonds
作者:Eakkaphon Rattanangkool、Watanya Krailat、Tirayut Vilaivan、Preecha Phuwapraisirisan、Mongkol Sukwattanasinitt、Sumrit Wacharasindhu
DOI:10.1002/ejoc.201402180
日期:2014.8
thiols with (diacetoxyiodo)benzene (DIB) has been explored in the preparation of symmetrical disulfides and sulfenamides. Disulfides can be produced in excellent yields (75–95 %) upon treatment of thiols with DIB. The reaction was complete in less than five minutes at room temperature. Aliphatic, aromatic, and heteroaromatic thiols are compatible with this transformation. Moreover, heteroaromatic disulfides
在对称二硫化物和次磺酰胺的制备中,已经探索了用(二乙酰氧基碘)苯 (DIB) 活化硫醇的硫原子。用 DIB 处理硫醇后,二硫化物可以以极好的收率 (75–95%) 产生。在室温下反应在不到五分钟内完成。脂肪族、芳香族和杂芳香族硫醇与这种转化相容。此外,从杂芳族硫醇获得的杂芳族二硫化物在碱存在下进一步与亲核胺反应,以一锅法以相当到良好的产率(43-90%)提供相应的次磺酰胺。该方法成功地扩展到吲哚作为一种代表性的富电子芳香化合物,从而可以在一锅中成功构建 S-C 键。