Results 61 to 70 of about 664 (168)

A Novel Palladium-Based Heterogeneous Catalyst for Tandem Annulation: A Strategy for Direct Synthesis of Acridones

, 2022
In order to develop an efficient, rapid, and modular cascade strategy for the direct synthesis of acridones, palladium supported on sulfated alumina and microwave activation are employed. Multifunctional heterogeneous palladium catalysts were prepared in
Volpe, María Alicia, Mendioroz, Pamela, Gerbino, Darío César, Steingruber, Hugo Sebastian, Castro, Maria Julia   +4 more
core   +1 more source

Flavones and acridones from Atalantia wightii

, 2009
291-294Two flavones racemoflavone 1 and atalantoflavone 2 and four acridones atalaphylline 3, 5-hydroxynoracronycin 4, citrusinine-I 5 and citrusinine-II 6 are isolated and identified from Atalantia wightii (leaves) along with a triterpene epi ...
Raj, Kanwal, Kumar, Satish, Khare, Pratibha   +2 more
core  

Synthesis of o-(Dimethylamino)aryl Ketones and Acridones by the Reaction of 1,1-Dialkylhydrazones and Arynes

, 2016
A novel, efficient route to biologically and pharmaceutically important o-(dimethylamino)aryl ketones and acridones has been developed starting from readily available 1,1-dimethylhydrazones of aldehydes and o-(trimethylsilyl)aryl triflates.
Richard C. Larock (1353099), Anton V. Dubrovskiy (2037565)   +1 more
core   +1 more source

2-Aminobenzaldehyde, a common precursor to acridines and acridones endowed with bioactivities

, 2020
International audienceBy starting from a common substrate, 2-aminobenzaldehyde, both acridines and acridones were prepared. The former were generated in high yields by copper-catalyzed N-arylation followed by acid-mediated cyclization while the latter ...
William Erb, Mongin, Florence, Florence Mongin, Picot, Laurent, Thierry Roisnel, Bentabed-Ababsa, Ghenia, Dorcet, Vincent, Thiéry, Valérie, Ghenia Bentabed-Ababsa, Sarah Zeghada, Valérie Thiéry, Mongin, Olivier, Olivier Mongin, Erb, William, Vincent Dorcet, Roisnel, Thierry, Laurent Picot, Zeghada, Sarah   +17 more
core   +1 more source

Carbanionic Friedel−Crafts Equivalents. Regioselective Directed Ortho and Remote Metalation−C−N Cross Coupling Routes to Acridones and Dibenzo[b,f]azepinones

, 2016
Carbanion-mediated general regioselective routes to acridones 4 (Table ) and dibenzo[b,f]azepinones 20 (Table ) are described. Buchwald−Hartwig C−N cross coupling of o-halo benzamides 1 with anilines 2 or 16, followed by simple N-methylation, dependably ...
Victor Snieckus (266177), Matthew Gray (2402251), Dmitry G. Gusev (1630657), Laura E. Briggs (2402254), Stephen L. MacNeil (1949737)   +4 more
core   +2 more sources

Palladium-Catalyzed Dual C–H Carbonylation of Diarylamines Leading to Diversified Acridones under CO-Free Conditions

A Pd-catalyzed dual C–H carbonylation of commercially available diarylamines using Co2(CO)8 as a safe CO source has been developed. This methodology provides a facile approach for the synthesis of diversified acridones in moderate to good yields.
Wenting Guo (800486), Jiali Huang (590640), Hualan Zhou (2828927), Chuanzhou Tao (16623916), Fujun Yin (1665427), Huiyan Wang (350287), Wenting Wu (174490), Weiming Hu (257720)   +7 more
core   +1 more source

Insertion of benzene rings into the amide bond: one-step synthesis of acridines and acridones from aryl amides

, 2009
"Chemical Equation Presented" Insertion of benzene rings into the amide bond using the reactive intermediate benzyne is described. Aromatic amides undergo smooth insertion when treated with O-triflatophenyl silane benzyne precursors, producing versatile ...
Greaney, Michael F., Pintori, Didier G., Didier G. Pintori, Michael F. Greaney   +3 more
core   +1 more source

Synthesis of pyrido[3,2-a] and indolo- [2,3-a]acridones

, 1999
1118-1120A new and convenient synthesis of pyrido[3,2-a]acridones 3 and indolo[2,3-a]acridones 5 starting from 4-hydroxy-2- methylquinoline 1 based on photochcmical approach is reported.
Selvi, S Thamarai, Mohan, P S
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Synthesis of Novel 1,3-Diacetoxy-Acridones as Cytotoxic Agents and their DNA-Binding Studies

, 2008
A series of novel substituted acridones (1–15) have been synthesized. Their in vitro cytotoxicity against human breast adenocarcinoma (MCF-7) and human promyelocytic leukemia (HL-60) cell lines has been investigated.
S. M. SHANTA KUMAR, N. M. RAGHAVENDRA, V. V. S. RAJENDRA PRASAD, N. K. SATHISH, Y. C. MAYUR   +4 more
core   +1 more source

Synthesis of o‑(Dimethylamino)aryl Ketones, Acridones, Acridinium Salts, and 1H‑Indazoles by the Reaction of Hydrazones and Arynes

, 2016
A novel, efficient route to biologically and pharmaceutically important o-(dimethylamino)­aryl ketones, acridones, acridinium salts, and 1H-indazoles has been developed starting from readily available hydrazones of aldehydes and o-(trimethylsilyl)­aryl ...
Richard C. Larock (1353099), Anton V. Dubrovskiy (1972912)   +1 more
core   +1 more source