Results 91 to 100 of about 19,386 (276)

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

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

open access: yesChemistry – A European Journal, EarlyView.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes   +5 more
wiley   +1 more source

Metal-Free, Ionic Liquid-Mediated Synthesis of Functionalized Quinolines

open access: yes, 2016
An expedient and metal-free synthetic protocol for construction of substituted quinolines has been developed from anilines and phenylacetaldehydes using imidazolium cation-based ionic liquids as the reaction medium.
Sandip B. Bharate (1575007)   +2 more
core   +1 more source

The synthesis of dimethoxy[1]benzothieno[2,3‐ c ]quinolines [PDF]

open access: yes, 1986
A series of dimethoxy[1]benzothieno[2,3‐ c ]quinolines have been prepared by photocyclization of the appropriate N ‐phenyl‐3‐chlorobenzo[ b ]thiophene‐2‐carboxamides.
Castle, Raymond N., Pakray, Sudabeh
core   +1 more source

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

open access: yesChemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Palladium-Catalyzed C‑2 Selective Arylation of Quinolines

open access: yes, 2016
An efficient method for the Pd-catalyzed regioselective C-2 arylation of quinolines is presented. Reactions of various substituted quinolines and unactivated arenes have been conducted under mild conditions.
Yuling Wang (168167)   +7 more
core   +1 more source

Characterization of the Interaction of Known G‐quadruplex Ligands With a Minimal i‐Motif Structure

open access: yesChemistry – A European Journal, EarlyView.
The destabilization of a minimal i‐Motif (iM) structure by TMPyP4 is driven by ligand recognition of one terminal iM structural domain. ABSTRACT Peculiar genomic regions are prone to evolve transiently from double‐helix DNA to noncanonical secondary structures in response to physiological stress.
Davide Auricchio   +3 more
wiley   +1 more source

Quinolines as chemotherapeutic agents for leishmaniasis

open access: yes, 2013
The development of leishmanicidal quinolines and their in vitro (promastigote and amastigote) and, where applicable, in vivo activities are reviewed. This survey provides a direct comparison of bioactivity across different species (e.g. L.
Young, David J   +2 more
core   +2 more sources

Iridium-Catalyzed Ionic Hydrogenation of Multi-Aza Heterocycles. [PDF]

open access: yesAngew Chem Int Ed Engl
Saturated nitrogen‐containing heterocycles are ubiquitous in bioactive molecules and are thus attractive synthetic targets. A readily accessible cyclometalated iridium(III) complex reduces 14 different aromatic aza heterocycles to (partially)saturated multi aza‐heterocycles enlarging accessible chemical space while displaying high tolerance toward ...
Despois A, Cramer N.
europepmc   +3 more sources

Selective Conversion of Diallylanilines and Arylimines to Quinolines

open access: yes, 2016
A variety of diallylanilines are shown to undergo cobalt−carbonyl catalyzed rearrangement to quinolines. Diallylanilines are also used as allyl transfer reagents to convert benzaldimines into quinolines.
William D. Jones (1351287)   +1 more
core   +1 more source

Home - About - Disclaimer - Privacy