1173153-20-2Relevant academic research and scientific papers
Alkyne-substituted diminazene as G-quadruplex binders with anticancer activities
Wang, Changhao,Carter-Cooper, Brandon,Du, Yixuan,Zhou, Jie,Saeed, Musabbir A.,Liu, Jinbing,Guo, Min,Roembke, Benjamin,Mikek, Clinton,Lewis, Edwin A.,Lapidus, Rena G.,Sintim, Herman O.
, p. 266 - 275 (2016)
G-quadruplex ligands have been touted as potential anticancer agents, however, none of the reported G-quadruplex-interactive small molecules have gone past phase II clinical trials. Recently it was revealed that diminazene (berenil, DMZ) actually binds to
Copper-Catalyzed Enantioselective C-H Arylation between 2-Arylindoles and Hypervalent Iodine Reagents
Liang, Hao,Zhu, Guoxun,Pu, Xiaoyun,Qiu, Liqin
, p. 9246 - 9250 (2021/12/06)
The copper-catalyzed enantioselective C-H arylation between 2-arylindoles and hypervalent iodine reagents has been successfully developed, which provides a convenient and economical route to the highly atroposelective synthesis of axially chiral indole de
Solvent-Dependent Cyclization of 2-Alkynylanilines and ClCF2COONa for the Divergent Assembly of N-(Quinolin-2-yl)amides and Quinolin-2(1 H)-ones
Wang, Ya,Zhou, Yao,Ma, Xingxing,Song, Qiuling
supporting information, p. 5599 - 5604 (2021/08/01)
Herein, we present an expedient Cu-catalyzed [5 + 1] cyclization of 2-alkynylanilines and ClCF2COONa to divergent construction of N-(quinolin-2-yl)amides and quinolin-2(1H)-ones by regulating the reaction solvents. Notably, nitrile acts as a solvent and performs the Ritter reactions. ClCF2COONa is used as a C1 synthon in this transformation, which also represents the first example for utilization of ClCF2COONa as an efficient desiliconization reagent. The current protocol involves in situ generation of isocyanide, copper-activated alkyne, Ritter reaction and protonation.
Copper(I)-Mediated Cascade Annulation via Dual C-H/C-H Activation: Access to Benzo[a]carbazolic AEEgens
Khandelia, Tamanna,Ghosh, Subhendu,Panigrahi, Pritishree,Shome, Rajib,Ghosh, Siddhartha Sankar,Patel, Bhisma K.
, p. 16948 - 16964 (2021/12/02)
A Cu(I)-mediated cascade cyclization/annulation of unprotectedo-alkynylanilines with maleimides in one pot is developed. The protocol offers sequential formation of one C-N and two C-C bonds to deliver fused benzo[a]carbazoles having free NH skeletons. The annulated products display fluorescence emission in the range of 485-502 nm with a large Stokes shift and fluorescence lifetime of ~17 ns. The annulated3aadisplays AEE behavior in the ethanol/hexane system and possesses marigold-flower-like morphology at the aggregated state. Cell viability assays enumerate biocompatible AEEgens, while their high intracellular fluorescence depicts cell imaging applicability.
Cascade Reactions Assisted by Microwave Irradiation: Ultrafast Construction of 2-Quinolinone-Fused γ-Lactones fromN-(o-Ethynylaryl)acrylamides and Formamide
Sacchelli, Bruce A. L.,Rocha, Bianca C.,Andrade, Leandro H.
supporting information, p. 5071 - 5075 (2021/07/20)
An ultrafast (10 s) methodology to construct novel highly functionalized 2-quinolinones fromN-(o-ethynylaryl)acrylamides (1,7-enynes) is described for the first time. Microwave irradiation enabled the ultrafast synthesis of 2-quinolinone-fused γ-lactones from Fenton’s reagents in formamide. After six key consecutive reactions, including a diastereoselective step, 2-quinolinone-fused γ-lactones were obtained in good overall yield (up to 46%; 10 s).
An expedient route to tricyanovinylindoles and indolylmaleimides fromo-alkynylanilines utilising DMSO as a one-carbon synthon
Chakraborty, Nikita,Dahiya, Anjali,Modi, Anju,Patel, Bhisma K.,Rakshit, Amitava
, p. 6847 - 6857 (2021/08/20)
A Pd(ii)/Cu(ii) catalysed domino synthesis of tricyanovinylindoles has been achieved using DMSO as a one-carbon synthon. The reaction proceedsviathe construction of 2-aryl-3-formyl indole followed by sequential addition of malononitrile and a CN resulting
Gold-Catalyzed Cascade and Divergent Synthesis of Indolobenzazepines and Indoloquinolines from Nitrogen-Tethered 1,8-Diynes
Ito, Mamoru,Onoda, Hideaki,Shibata, Takanori,Takaki, Asahi
supporting information, (2022/01/22)
We describe the divergent construction of two nitrogen-containing polycyclic systems by gold-catalyzed cycloisomerizations. The gold-catalyzed cascade hydroamination and 7-endo-dig-selective cycloisomerization of nitrogen-tethered 1,8-diynes yielded indol
A competitive and highly selective 7-, 6- And 5-annulation with 1,3-migration through C-H and N-H-alkyne coupling
Ajarul, Sk,Kayet, Anirban,Pati, Tanmay K.,Maiti, Dilip K.
supporting information, p. 474 - 477 (2020/01/13)
We demonstrated a highly competitive and selective C-C and N-C cross-coupled 7-, 6- and 5-annulation utilizing 2-ethynylanilides to afford functionalized 1H-benzo[b]azepin-2(5H)-ones, 2-quinolinones, and 3-acylindoles in high yield. ZnCl2 was f
Palladium-Catalyzed Ligand-Free Double Cyclization Reactions for the Synthesis of 3-(1′-Indolyl)-phthalides
Yuan, Shuo,Zhang, Dan-Qing,Zhang, Jing-Ya,Yu, Bin,Liu, Hong-Min
supporting information, p. 814 - 817 (2020/02/04)
Indole and phthalide are privileged heterocyclic scaffolds in numerous natural products and bioactive molecules. The synthesis and biological evaluation of the compounds combining these two scaffolds have rarely been reported. Herein, we repot the first palladium-catalyzed ligand-free double cyclization reactions that enable efficient synthesis of 3-(1′-indolyl)-phthalides (42 examples, up to 96% yield) under mild conditions. Notably, only 1.0 mol % of catalyst loading is used, suggesting high efficiency. Late-stage elaborations give highly functionalized analogues.
Syntheses of N-Alkyl 2-Arylindoles from Saturated Ketones and 2-Arylethynylanilines via Cu-Catalyzed Sequential Dehydrogenation/Aza-Michael Addition/Annulation Cascade
Chen, Linlin,Ling, Fei,Liu, Tao,Ma, Yan,Song, Dingguo,Xiao, Lian,Xu, Min,Yu, Mengyao,Zhong, Weihui
, p. 3224 - 3233 (2020/03/23)
We describe here a Cu-catalyzed and 4-OH-TEMPO-mediated sequential dehydrogenation/aza-Michael addition/annulation cascade reaction for the construction of N-alkyl 2-arylindoles from facilely available saturated ketones and 2-arylethynylanilines. This rea
