通过叔 =NH 磺酰亚胺2 aa的各种 N 官能化反应,制备了一组前所未有的结构多样的磺酰亚胺(47 种化合物)。模型化合物2 aa的这些 N 官能化反应包括芳基化、烷基化、三氟甲基化、氰化、磺酰化、烷氧基羰基化(氨基甲酸酯形成)和氨基羰基化(脲形成)。报道了所选 N 功能化产物的小分子 X 射线分析。为了进一步了解磺酰亚胺与药物化学相关的特性,在选定的体外测定中测试了各种结构多样的反应产物。所描述的N-官能化反应为结构多样的磺酰亚胺酰胺提供了一种简短而有效的方法,这已成为生命科学领域最近日益增长的兴趣的主题。
Cu-Catalysed Mild Synthesis of <i>N</i>
-Imidoyl and <i>N</i>
-Oxoimidoyl Sulfonimidamides through the Three-Component Coupling of Sulfonimidamides, Azides, and Alkynes
作者:Ganesh Chandra Nandi
DOI:10.1002/ejoc.201701380
日期:2017.12.8
Sulfonimidamides have been used as unfamiliar and less reactive imine nucleophiles (S=NH) to obtain N-imidoyl and N-oxoimidoyl sulfonimidamides in a three-componentcoupling reaction with azides and alkynes under mild conditions.
3D Heterocycles from Sulfonimidamides by Sequential C−H Bond Alkenylation/Aza‐Michael Cyclization
作者:Anne‐Katrin Bachon、Alina Hermann、Carsten Bolm
DOI:10.1002/chem.201900920
日期:2019.4.23
rhodium‐catalyzed C−H bond alkenylation followed by aza‐Michael cyclization leads to unprecedented benzoisothiazole 1‐oxides. The applicability and robustness of the method is demonstrated in 25 examples with yields up to 95 %. The resulting scaffolds are partly saturated, 3D heterocycles with potential significance for medicinal and agricultural chemistry.
and beneficial functionality for pharmaceutical or agrochemical entities. Herein, we report the Csp2–H sulfoximidation of electron-rich arenes under the irradiation of bluelight using an organic acridinium photocatalyst and molecular oxygen or peroxodisulfates as terminal oxidants. The method allows for the late-stage introduction of various sulfoximines onto complex bioactivecompounds showing high
de‐alkylation/amination sequences provide sulfonimidamides from unprotected sulfoximines in moderate to good yields. Mechanistic studies suggest the involvement of radicals in both the C−S bondcleavage and the formation of the new N−S bond.
An NH transaction: The first direct synthesis of tertiary NH sulfonimidamides from tertiary sulfinamides by electrophilic NH transfer has been achieved. In vitro studies did not reveal any intrinsic flaw of the sulfonimidamide group regarding properties relevant to medicinal chemistry.