Ni-Catalyzed Mild Synthesis of Sulfonylurea via Tandem Coupling of Sulfonyl Azide, Isocyanide, and Water
作者:Ravindra Sundaresan、Shivam Kumar Dubey、Ramesh Kataria、Ganesh Chandra Nandi
DOI:10.1021/acs.joc.3c00110
日期:2023.6.2
An efficient, mild, and novel route is developed to synthesize sulfonylurea via the nickel-catalyzed tandem coupling of sulfonyl azide, isocyanide, and water in aqueous media. The sulfonyl azide is expected to act as a nitrene precursor, which upon reaction with isocyanide generates carbodiimide. Herein, water acts as a nucleophile and reacts with carbodiimide to deliver the product. The protocol uses
通过磺酰叠氮化物、异氰化物和水在水性介质中的镍催化串联偶联,开发了一条高效、温和且新颖的合成磺酰脲的新路线。预计磺酰叠氮化物充当氮烯前体,其在与异氰化物反应时生成碳二亚胺。在此,水充当亲核试剂并与碳二亚胺反应以递送产物。该协议使用廉价的镍催化剂、环保水(作为亲核试剂)和室温,并提供中等至良好收率的产品。