Results 71 to 80 of about 19,386 (276)

Synthesis and Elimination Pathways of 1-Methanesulfonyl-1,2-dihydroquinoline Sulfonamides

Molecules, 2023
A series of new Morita–Baylis–Hillman acetates were prepared and reacted with methanesulfonamide (K2CO3, DMF, 23 °C) to produce tertiary dihydroquinoline sulfonamides in high yields.
Ebenezer Ametsetor, Kwabena Fobi, Richard A. Bunce   +2 more
doaj   +1 more source

Quinoline-2-sulfonamide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2013
In the title compound, C9H8N2O2S, the sulfamoyl -NH2 group is involved in inter-molecular hydrogen bonding with the sulfonamide O and quinoline N atoms. In the crystal, mol-ecules are linked into dimers via pairs of N-H⋯N hydrogen bonds, forming an R 2 (2)(10) motif.
Joachim Kusz, Maria Nowak, Andrzej Maślankiewicz, Krzysztof Marciniec   +3 more
openaire   +3 more sources

Concise synthesis of fused polycyclic quinolines

, 2001
β-(2-Aminophenyl)-α,β-ynones react with enamines of cyclic ketones by domino [2+2]cycloaddition/annelation reaction giving rise to bicyclo[4.2.0]-octane[7,8-c]-2-aryl quinolines or to c-fused quinolines.
G. Abbiati, E. Rossi, A. Arcadi, F. Marinelli   +3 more
core   +1 more source

]quinolines [PDF]

, 2021
We report a chemoselective tandem oxidative cyclization/aromatization of indole derivatives tethered to aniline sulfonamides using catalytic amount of tetrabutylammonium iodide in the presence of tert-butyl hydroperoxide (TBHP) as an oxidant under nearly
Ishihara, Kazuaki, Uyanik, Muhammet, Tanaka, Hiroki, Kazuaki Ishihara, Muhammet Uyanik, Hiroki Tanaka   +5 more
core   +1 more source

NITROIMIDAZOLES XI [I]. SYNTHESES OF DISUBSTITUTED NITROIMIDAZOLYLQUINOLINES [PDF]

Journal of Sciences, Islamic Republic of Iran, 1995
Reaction of substituted-aniline (8) with ethyl (l-methyl-5-nitroimidazole-2- carbonyl) acetate (9) gave 4-hydroxy-2-(l-methyl-5-nitro-2-imidazolyl)- substituted-quinolines (lo), which were converted to compound 11 with phosphorus oxychloride. Substituted-
doaj  

Visible-Light-Induced Singlet Oxygen-Promoted Arylation and Alkylation of Quinoxalin-2(1H)-ones and Quinolines

Molecules
We report a green and efficient visible-light-driven method for the arylation and alkylation of quinoxalin-2(1H)-ones and quinolines. This catalyst-free process utilizes air as the oxidant, offering mild reaction conditions, environmental sustainability,
Renjun Tan, Hequn Yang, Min Jiang, Peijun Song   +3 more
doaj   +1 more source

Microwave Irradiation Promoted the Niementowski Reaction Preparation of Substituted Quinazolinones and Quinolines [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1998
The first highly accelerated Niementowski reaction of anhranilic acid with some amides or ketones under microwave irradiation leading to quinazolinones and quinoline derivatives is described. These reactions represent some examples of efficient microwave
Mohammad Sadegh Khajavi, Parichehr Afshani, Kourosh Rad Moghadam   +2 more
doaj  

Synthesis of Quinolines via Rh(III)-Catalyzed Oxidative Annulationof Pyridines

, 2011
Synthesis of Quinolines via Rh(III)-Catalyzed Oxidative Annulationof ...
公雪, 李兴伟, 宋国勇
core  

Synthesis of Camphor-Based Chiral Quinolines

, 1995
Several chiral quinolines are prepared by the cyclization of imines derived from ...
Love, Brian E., Ren, Jianhua
core   +1 more source

A New Green Approach to the Friedländer Synthesis of Quinolines

, 2003
A new approach to the Friedländer synthesis of quinolines is described. Polysubstituted quinolines are readily prepared under milder conditions than in other existing methods through a gold(III)-catalysed sequential condensation/annulation reaction of o-
Sabrina Di Giuseppe, Antonio Arcadi, CHIARINI, MARCO, Fabio Marinelli   +3 more
core   +2 more sources