Facile oxidative cyclization to access C2-quaternary 2-hydroxy-indolin-3-ones: synthetic studies towards matemone?
New Journal of Chemistry Pub Date: 2017-09-01 DOI: 10.1039/C7NJ02246H
Abstract
A concise and facile approach for the construction of 2-hydroxy-2-substituted indol-3-ones was developed through an oxidative cyclization of 2-aminophenyl-1,3-dione. Using CAN and TEMPO as oxidants, C2-quaternary 2-hydroxy-indolin-3-ones were efficiently installed in moderate to excellent yields (up to 99%). Moreover, this developed protocol was further applied to synthetic studies towards natural product matemone by starting from readily available 2-amino-4-bromobenzoic acid, and the precursor for matemone was efficiently installed.
Recommended Literature
- [1] Evolutionary approaches in protein engineering towards biomaterial construction Brindha J.,Balamurali M. M.,Kaushik ChandaRSC Adv., 2019,9, 34720-34734 10.1039/C9RA06807D
- [2] Emerging investigator series: heterogeneous reactions of sulfur dioxide on mineral dust nanoparticles: from single component to mixed components? Tao Wang,Yangyang Liu,Yue Deng,Hongbo Fu,Jianmin ChenEnviron. Sci.: Nano, 2018,5, 1821-1833 10.1039/C8EN00376A
- [3] Enabling non-flammable Li-metal batteries via electrolyte functionalization and interface engineering? Jing Yu,Yu-Qi Lyu,Jiapeng Liu,Mohammed B. Effat,Junxiong WuJ. Mater. Chem. A, 2019,7, 17995-18002 10.1039/C9TA03784E
- [4] Evidence for the intrinsic nature of band-gap states electrochemically observed on atomically flat TiO2(110) surfaces? Shintaro Takata,Yoshihiro MiuraPhys. Chem. Chem. Phys., 2014,16, 24784-24789 10.1039/C4CP03280B
- [5] Estimating and correcting interference fringes in infrared spectra in infrared hyperspectral imaging Ghazal Azarfar,Ebrahim Aboualizadeh,Nicholas M. Walter,Simona Ratti,Camilla Olivieri,Alessandra Norici,Michael Nasse,Achim Kohler,Mario GiordanoAnalyst, 2018,143, 4674-4683 10.1039/C8AN00093J
- [6] Fate of Sb(v) and Sb(iii) species along a gradient of pH and oxygen concentration in the Carnoulès mine waters (Southern France) Eléonore Resongles,Corinne Casiot,Fran?oise Elbaz-Poulichet,Rémi Freydier,Odile Bruneel,Christine Piot,Sophie Delpoux,Aurélie Volant,Angélique DesoeuvreEnviron. Sci.: Processes Impacts, 2013,15, 1536-1544 10.1039/C3EM00215B
- [7] Excimer formation effects and trap-assisted charge recombination loss channels in organic solar cells of perylene diimide dimer acceptors? Min Kim,Jae-Joon Lee,Tengling Ye,Panagiotis E. Keivanidis,Kilwon ChoJ. Mater. Chem. C, 2020,8, 1686-1696 10.1039/C9TC04955J
- [8] Dissolution of cork biopolymers in biocompatible ionic liquids Helga Garcia,Rui Ferreira,Marija Petkovic,Jamie L. Ferguson,Maria C. Leit?o,H. Q. Nimal Gunaratne,Luís Paulo N. RebeloGreen Chem., 2010,12, 367-369 10.1039/B922553F
- [9] Examination of deposit in commercial diluted phosphoric acid Analyst, 1880,5, 146-147 10.1039/AN8800500146
- [10] Evolution and characterization of a benzylguanine-binding RNA aptamer? J. Xu,T. J. Carrocci,A. A. HoskinsChem. Commun., 2016,52, 549-552 10.1039/C5CC07605F
Journal Name：New Journal of Chemistry
research_products
-
CAS no.: 89640-58-4
![N-(3-cyanothiolan-3-yl)-2-[(2,2,2-trifluoroethyl)sulfanyl]pyridine-4-carboxamide](https://ossimg.kuujia.com/scimg/1444500/1444113-98-7x500.png)
![1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-6-ol](https://ossimg.kuujia.com/scimg/1271000/1270529-38-8x500.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)