Regioselective 6-endo-dig iodocyclization: an accessible approach for iodo-benzo[a]phenazines?
Organic & Biomolecular Chemistry Pub Date: 2017-05-05 DOI: 10.1039/C7OB00671C
Abstract
A facile approach for the synthesis of substituted iodo-benzo[a]phenazines from 2-aryl-3-(aryl/alkylethynyl)quinoxalines via 6-endo-dig ring closure has been described under mild reaction conditions. Iodocyclization proceeds through the iodonium ion intermediate followed by nucleophilic cyclization with the C–H bond of the arene. Furthermore, the resulting 6-iodo-5-aryl/alkyl benzo[a]phenazine derivatives allowed for structural diversification by employing various coupling reactions. The structure of iodo-benzo[a]phenazine was confirmed by X-ray crystallographic studies of the compound.
![Graphical abstract: Regioselective 6-endo-dig iodocyclization: an accessible approach for iodo-benzo[a]phenazines](http://scimg.chem960.com/usr/1/C7OB00671C.jpg)
Recommended Literature
- [1] An astrophysically-relevant mechanism for amino acid enantiomer enrichment Stephen P. Fletcher,Richard B. C. Jagt,Ben L. FeringaChem. Commun., 2007, 2578-2580 10.1039/B702882B
- [2] An approach for correlating the structural and electrical properties of Zr4+-modified SrBi4Ti4O15/SBT ceramic Priyambada Nayak,Tanmaya Badapanda,Anil Kumar Singh,Simanchalo PanigrahiRSC Adv., 2017,7, 16319-16331 10.1039/C7RA00366H
- [3] An integrated system for field analysis of Cd(ii) and Pb(ii) via preconcentration using nano-TiO2/cellulose paper composite and subsequent detection with a portable X-ray fluorescence spectrometer? Xiaofeng LinRSC Adv., 2016,6, 9002-9006 10.1039/C5RA25693C
- [4] An atomic scale study of defects in Co2FeAl Ravi Kumar Yadav,R. GovindarajPhys. Chem. Chem. Phys., 2020,22, 26876-26886 10.1039/D0CP04572A
- [5] An insight into the origin of room-temperature ferromagnetism in SnO2 and Mn-doped SnO2 quantum dots: an experimental and DFT approach? Dhamodaran Manikandan,S. Amirthapandian,I. S. Zhidkov,A. I. Kukharenko,S. O. Cholakh,Ramaswamy MuruganPhys. Chem. Chem. Phys., 2018,20, 6500-6514 10.1039/C7CP07182E
- [6] An atmosphere and light tuned highly diastereoselective synthesis of cyclobuta/penta[b]indoles from aniline-tethered alkylidenecyclopropanes with alkynes? Bo Cao,Yin WeiChem. Commun., 2018,54, 2870-2873 10.1039/C8CC00180D
- [7] An approach to asymmetric synthesis of β-aryl alanines by Pd(0)-catalyzed cross-coupling and cyanate-to-isocyanate rearrangement? Piotr Szcze?niak,Sebastian SteckoRSC Adv., 2015,5, 30882-30888 10.1039/C5RA02818C
- [8] An Assessment of the Laminar Hypersonic Double-Cone Experiments in the LENS-XX Tunnel JaideepRay,PatrickBlonigan,EricT.Phipps,KathrynMaupin 10.2514/1.j062802
- [9] An algal process treatment combined with the Fenton reaction for high concentrations of amoxicillin and cefradine Haitao Li,Yu Pan,Zhizhi Wang,Shan Chen,Ruixin Guo,Jianqiu ChenRSC Adv., 2015,5, 100775-100782 10.1039/C5RA21508K
- [10] Alternative donor substrates for inverting and retaining glycosyltransferases? Luke L. Lairson,Warren W. WakarchukChem. Commun., 2007, 365-367 10.1039/B614636H
Journal Name：Organic & Biomolecular Chemistry
research_products
-
CAS no.: 89640-58-4
![1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-6-ol](https://ossimg.kuujia.com/scimg/1271000/1270529-38-8x500.png)
![N-(3-cyanothiolan-3-yl)-2-[(2,2,2-trifluoroethyl)sulfanyl]pyridine-4-carboxamide](https://ossimg.kuujia.com/scimg/1444500/1444113-98-7x500.png)
![2,2-Difluoro-3-[methyl(2-methylbutyl)amino]propanoic acid](https://ossimg.kuujia.com/scimg/2138500/2138166-62-6x500.png)
![2-(1H-indol-3-yl)-N-{[6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]methyl}acetamide](https://ossimg.kuujia.com/scimg/2034500/2034271-14-0x500.png)