Synthesis of Benzotriazine and Aryltriazene Derivatives Starting from 2-Azidobenzonitrile Derivatives
作者:Azadeh Nakhai、Birgitta Stensland、Per H. Svensson、Jan Bergman
DOI:10.1002/ejoc.201000328
日期:2010.12
3-Substituted 3,4-dihydro-4-imino-1,2,3-benzotriazine derivatives 7 were formed from 2-azidobenzonitriles 4 as starting materials on treatment with Grignard or lithium organic reagents. In some cases these procedures gave aryltriazenes 10 and 11 as products. All compounds were identified by NMR spectroscopy and the structures of three products, namely 7a, 10a and 11i, were corroborated by X-ray crystallography
method for the synthesis of isatin oximes was developed through the radical coupling reactions of oxindoles with t-BuONO. This protocol provides a practical and environmentally benign method for the construction of C–N bonds in water at room temperature without using any other reagents. The advantages of this strategy are its mild reaction conditions and clean procedure.
Copper-Catalyzed Selective <i>N</i>-Vinylation of 3-(Hydroxyimino)indolin-2-ones with Alkenyl Boronic Acids: Synthesis of <i>N</i>-Vinyl Nitrones and Spirooxindoles
作者:Chun-Hua Chen、Qing-Qing Liu、Xiao-Pan Ma、Yu Feng、Cui Liang、Cheng-Xue Pan、Gui-Fa Su、Dong-Liang Mo
DOI:10.1021/acs.joc.7b00620
日期:2017.6.16
A copper-catalyzed selective cross-coupling reaction of 3-(hydroxyimino)indolin-2-ones with alkenylboronicacids to access (E)-N-vinyl oxindole nitrones has been achieved under mild conditions. The studies showed that catalytic copper salt selectively gave mono N-vinylation products, while 2.0 equiv of copper salt provided double N-vinylation products. The control experiments revealed that the carbonyl
Hydropyrrolo[2,3-b]indole is a privileged indoline motif, while its analogue, hydropyrrolo[3,2-b]indole, has been much less explored. Herein, we developed a cascade reaction of oxindole-derived nitrones with allenoates, providing straightforward access to the tetracyclic hydropyrrolo[3,2-b]indole scaffolds. Formation of multiple C–C/C–X bonds and cleavage could be achieved within one synthetic step
Hydropyrrolo[2,3- b ]indole 是一种特殊的二氢吲哚基序,而其类似物 hydropyrrolo[3,2- b ]indole 则鲜为人知。在此,我们开发了羟吲哚衍生的硝酮与联烯酸酯的级联反应,提供了四环氢吡咯并 [3,2- b ] 吲哚支架的直接途径。多个 C-C/C-X 键的形成和裂解可以在温和条件下使用一种简单的催化剂 (Gimeracil) 在一个合成步骤中实现。反应途径可能涉及作为关键中间体的螺氢氮杂酮的产生。
[EN] KINASE INHIBITORS AND METHOD OF TREATING CANCER WITH SAME<br/>[FR] INHIBITEURS DE KINASES ET PROCÉDÉ DE TRAITEMENT DU CANCER UTILISANT CEUX-CI