An iron(<scp>iii</scp>)-catalyzed dehydrogenative cross-coupling reaction of indoles with benzylamines to prepare 3-aminoindole derivatives
作者:Wei-Li Chen、Kun Li、Wei-Cong Liao、Wang-Fu Liang、Pei-Wen Qiu、Cui Liang、Gui-Fa Su、Dong-Liang Mo
DOI:10.1039/d1gc02849a
日期:——
excellent yields through an iron(III)-catalyzed dehydrogenative cross-coupling reaction of 2-arylindoles and primary benzylamines under mild reaction conditions. Mechanistic studies show that a cascade reaction involves a tert-butyl nitrite (TBN)-mediated nitrosation of 2-substituted indoles and a 1,5-hydrogen shift to afford indolenine oximes, sequential iron(III)-catalyzed condensation and a 1,5-hydrogen
我们报告了一种绿色级联方法,通过铁 ( III ) 催化的 2-芳基吲哚和伯苄胺在温和反应条件下的脱氢交叉偶联反应,以良好到优异的产率制备各种 3-氨基吲哚衍生物。机理研究表明,级联反应涉及亚硝酸叔丁酯 (TBN) 介导的 2-取代吲哚的亚硝化和 1,5-氢转移以提供吲哚啉肟、序贯铁 ( III))-催化缩合和 1,5- 氢转移在一锅反应的四个步骤中。该反应显示了吲哚和苄胺的广泛底物范围,并且可以耐受广泛的官能团。此外,反应很容易以克规模进行,反应完成后不会产生废物。3-氨基吲哚产物通过简单的萃取、洗涤和重结晶纯化,无需快速柱色谱。含有3-氨基吲哚单元的双亚胺配体易于一步获得,产率为52%。本方法突出了容易获得的起始材料、简单的纯化程序以及廉价、无毒和环境友好的铁 ( III ) 催化剂的使用。
Synthesis of CF
<sub>2</sub>
H‐Containing Oxime Ethers Derivatives from ClCF
<sub>2</sub>
H,
<i>tert</i>
‐Butyl Nitrile and Indoles
作者:Xingxing Ma、Hua Huang、Jianke Su、Zhiyi Song、Tamaki Nakano、Qiuling Song
DOI:10.1002/cjoc.201900401
日期:2020.1
A new and intriguing methodology to access various O‐difluoromethylation oxime compounds from ClCF2H, TBN and indoles is developed under mild reaction conditions. This strategy can suppress N‐difluoromethylation of indoles successfully, in which there are two different active species (:CF2 and ·NO) while indoles are unprotected, featuring simple operation and radical involvement.
Acid-catalyzed cleavage of C–C bonds enables atropaldehyde acetals as masked C2 electrophiles for organic synthesis
作者:Shaomin Chen、Minghao Li、Yanlong Gu
DOI:10.1039/d1cc04000f
日期:——
Acid-catalyzed tandem reactions of atropaldehyde acetals were established for the synthesis of three important molecules, 2,2-disubstituted indolin-3-ones, naphthofurans and stilbenes. The synthesis was realized using novel reaction cascades, which involved the same two initial steps: (i) SN2′ substitution, in which the atropaldehyde acted as an electrophile; and (ii) oxidative cleavage of the carbon–carbon
阿托醛缩醛的酸催化串联反应被建立用于合成三个重要分子,2,2-二取代 indolin-3-ones、萘并呋喃和芪。该合成是使用新的反应级联反应实现的,其中涉及相同的两个初始步骤:(i) S N 2' 取代,其中阿托醛充当亲电子试剂;(ii) 生成的苯乙醛类产物的碳-碳键的氧化裂解。与文献方法相比,本协议不仅避免使用昂贵的贵金属催化剂,而且操作简单。
[EN] PHENYL INDOLE ALLOSTERIC INHIBITORS OF P97 ATPASE<br/>[FR] INHIBITEURS ALLOSTÉRIQUES DE PHÉNYL INDOLE DE L'ATPASE P97
申请人:UNIV OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
公开号:WO2017070320A1
公开(公告)日:2017-04-27
The present invention is directed to methods of inhibiting p97 and compounds and compositions useful in such methods. Diseases and conditions the can be treated with the compounds and compositions of the invention include, but are not limited to, cancer and neurodegenerative disorders susceptible to treatment by inhibition of p97.
Multi-site cyclization via initial C–H activation using a rhodium(<scp>iii</scp>) catalyst: rapid assembly of frameworks containing indoles and indolines
Tandem multi-site cyclization triggered by Rh(iii)-catalyzed C–H activation has been achieved for highly efficient synthesis of spirocycle indolin-3-one (C2-cyclization), benzo[a]carbazole (C3-cyclization) and an unusual indoxyl core (N1-cyclization).