Cp*Co(<scp>iii</scp>)-catalyzed C–H amination/annulation cascade of sulfoxonium ylides with anthranils for the synthesis of indoloindolones
作者:Yogesh N. Aher、Amit B. Pawar
DOI:10.1039/d1cc02817k
日期:——
Cp*Co(III)-catalyzed [4+1] annulation of sulfoxonium ylides with anthranils has been developed for the synthesis of indole–indolone scaffolds. The dual functionality of anthranils was exploited, wherein the nitrogen has been used for C–H amination and the aldehyde group was utilized in the subsequent intramolecular aldol condensation to furnish the corresponding annulated products.
Cp*Co( III )-催化的锍叶立德与邻氨基苯甲酸的[4+1]环化已被开发用于合成吲哚-吲哚酮支架。利用了邻氨基苯甲酸的双重功能,其中氮用于 C-H 胺化,醛基用于随后的分子内醇醛缩合以提供相应的环状产物。
Gold-catalyzed annulations of <i>N</i>-aryl ynamides with benzisoxazoles to construct 6<i>H</i>-indolo[2,3-<i>b</i>]quinoline cores
作者:Meng-Han Tsai、Cheng-Yu Wang、Antony Sekar Kulandai Raj、Rai-Shung Liu
DOI:10.1039/c8cc04264k
日期:——
This work reports new annulations of N-aryl ynamides with benzisoxazoles to form 6H-indolo[2,3-b]quinoline derivatives.
Cu(II)/Ag(I)-Catalyzed Cascade Reaction of Sulfonylhydrazone with Anthranils: Synthesis of 2-Aryl-3-sulfonyl Substituted Quinoline Derivatives
作者:Fei Wang、Pei Xu、Shun-Yi Wang、Shun-Jun Ji
DOI:10.1021/acs.orglett.8b00525
日期:2018.4.20
In this paper, a Cu(II)/Ag(I)-catalyzed cascade reaction of anthranils with sulfonylhydrazone to construct 2-phenyl-3-sulfonyl disubstituted quinolinederivatives under mild conditions was studied. The mechanism study indicated that this reaction involves radical addition, and new C–C, C–N, and C–S bonds were constructed in one step.
An efficient carbonylative procedure for the synthesis of 3-arylquinoin-2(1H)-ones has been established. Through a palladium-catalyzed aminocarbonylation of benzylchlorides with anthranils, a variety of 3-arylquinoin-2(1H)-one products were obtained in moderate to excellent yields with good functional group tolerance.
已经建立了用于合成 3-arylquinoin-2(1 H )-ones 的有效羰基化方法。通过钯催化的苄基氯与邻氨基苯甲酰氨基羰基化反应,以中等至优异的收率获得了多种 3-arylquinoin-2(1 H )-one 产物,具有良好的官能团耐受性。
α,β-Functionalization of saturated ketones with anthranils via Cu-catalyzed sequential dehydrogenation/aza-Michael addition/annulation cascade reactions in one-pot
An efficient method to access functionalized quinolines from the readily available saturatedketones and anthranils have been explored. This one-pot cascade reaction involves the in situ generation of α,β-unsaturated ketones by the copper catalysed dehydrogenation of saturatedketones followed by the aza-Michael addition of anthranils and subsequent annulation.