Results 81 to 90 of about 18,253 (267)

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

open access: yesMolecules, 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   +2 more
doaj   +1 more source

Nitriles in heterocyclic synthesis: Novel syntheses of benzo[b]pyrans, naphtho[1,2-b]pyrans, naphtho[2,1-b]pyrans, pyrano[3,2-h]quinolines and pyrano[3,2-c]quinolines [PDF]

open access: yes, 1988
Benzo[b]pyrans, naphtho[1,2-b]pyrans, naphtho[2,1-b]pyrans, pyrano[3,2-h]quinolines, and pyrano[3,2-c]quinolines were synthesized by the reaction of cinnamonitriles with phenols, naphthols, 8-hydroxyquinoline, and 1-methyl-4-hydroxy-2-quinoline.
Mohamed H. Elnagdi   +3 more
core   +1 more source

]quinolines [PDF]

open access: yes, 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   +5 more
core   +1 more source

Quinoline-2-carbaldehyde [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The title compound, C(10)H(7)NO, crystallizes with two almost planar mol-ecules (A and B) in the asymmetric unit (r.m.s. deviations = 0.018 and 0.020 Å). In the crystal, the A mol-ecules are linked by weak C-H⋯O inter-actions, thereby generating C(9) [001] chains. The B mol-ecules do not exhibit any directional bonding inter-actions.
Martin O. Onani, William M. Motswainyana
openaire   +3 more sources

Quinoline: A versatile heterocyclic

open access: yesSaudi Pharmaceutical Journal, 2013
Quinoline or 1-aza-naphthalene is a weak tertiary base. Quinoline ring has been found to possess antimalarial, anti-bacterial, antifungal, anthelmintic, cardiotonic, anticonvulsant, anti-inflammatory, and analgesic activity. Quinoline not only has a wide range of biological and pharmacological activities but there are several established protocols for ...
Marella, Akranth   +7 more
openaire   +2 more sources

Synthetic Approaches of Pyrazolyl Quinolines [PDF]

open access: yes, 2019
This review article represents a survey of the synthetic strategies leading to pyrazolyl quinolines. The synthetic methods are divided into two main groups based on the type of starting reagents: 1) From quinoline ring onto a pyrazole scaffold, 2) From
Rizk E. Khidre   +2 more
core   +1 more source

Quinoline-8-sulfonamide [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
In the title compound, C(9)H(8)N(2)O(2)S, the sulfamoyl NH(2) group is involved in intra-molecular N-H⋯N and inter-molecular N-H⋯O hydrogen bonding. In the crystal, molecules are linked via pairs of N-H⋯O hydrogen bonds, forming inversion dimers, which are further associated through π-π stacking inter-actions between the quinoline benzene rings ...
Marciniec, Krzysztof   +3 more
openaire   +2 more sources

Quinolines and analogs with a marked anticancer activity. [PDF]

open access: yes, 2015
Quinolines and analogs with a marked anticancer activity.
Katarzyna Malarz (829453)   +6 more
core   +1 more source

Crystalline Quinolinate Phosphoribosyltransferase

open access: yesJournal of Biological Chemistry, 1965
Abstract Quinolinate phosphoribosyltransferase catalyzes the formation of nicotinic acid mononucleotide, carbon dioxide, and inorganic pyrophosphate from quinolinic acid and 5-phosphoribosyl 1-pyrophosphate. The enzyme has a molecular weight of 165,000 and can be irreversibly dissociated into inactive protein units with a molecular weight of 54,000 ...
P M, Packman, W B, Jakoby
openaire   +2 more sources

Divergent Synthesis of Quinolines: Exploiting the Duality of Free Radicals [PDF]

open access: yes
Herein, we present a green scheme for the divergent synthesis of two polysubstituted quinolines from a singular substrate via exploiting free-radical duality.
Runwei Jiao (8593647)   +8 more
core   +1 more source

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