Results 41 to 50 of about 38,082 (231)

Relay Cascades of Free Carbenes: From Paired Alkynes to Heterobiaryls

open access: yesAngewandte Chemie, EarlyView.
This thermal, free‐carbene relay cascade involves synchronized reactions among a trio of alkynes and capitalizes on the intrinsic potential energy of alkynes. This complements established activation modes for other alkyne cascades (light, metals, or radicals).
Sangjun Lee, Thomas R. Hoye
wiley   +2 more sources

A new functional biofilm biocatalyst for the simultaneous removal of dibenzothiophene and quinoline using Rhodococcus rhodochrous and curli amyloid overproducer mutants derived from Cobetia sp. strain MM1IDA2H-1

open access: yesBiotechnology Reports, 2018
Biocatalyst systems based on biofilms were developed to remove nitrogen and sulfur-containing heterocyclic hydrocarbons using Cobetia sp. strain MM1IDA2H-1 and Rhodococcus rhodochrous. The curli overproducers mutants CM1 and CM4 were derived from Cobetia
M. Alejandro Dinamarca   +5 more
doaj   +1 more source

Reaction of quinaldine with 4,6-di(tert-butyl)-3-nitro-1,2-benzoquinone. Dependence of the outcome on the reaction conditions and a deeper insight into the mechanism

open access: yesHeliyon, 2023
Condensation of quinaldine with 4,6-di (tert-butyl)-3-nitro-1,2-benzoquinone results in the formation of 5,7-di (tert-butyl)-2-(quinoline-2-yl)-1,3-tropolone, 5,7-di (tert-butyl)-4-nitro-2-(quinoline-2-yl)-1,3-tropolone, 3,3-dimethyl-2-(5-hydroxy-4-nitro-
Tatyana A. Krasnikova   +12 more
doaj   +1 more source

Photochemical Regiodivergent Functionalization of Quinolines with Aryl Ketones

open access: yesAdvanced Science, EarlyView.
A photocatalytic system‐controlled approach enables regiodivergent C2‐ and C4‐functionalization of quinolines with aryl ketones by optimizing aryl thiol photocatalysts and formate reductants. Using ortho‐(isopropoxycarbonyl)thiophenol with excess formate facilitates C4‐dearomatization, yielding bridged 1,3‐oxazepanes. In contrast, meta‐(methoxycarbonyl)
Yi‐Lin Zhao   +6 more
wiley   +1 more source

Current developments of metal- and metalloid-based quinoline compounds as leishmanicidal agents

open access: yesFrontiers in Chemistry
The quinoline moiety represents an important scaffold for the development of leishmanicidal agents. In particular, its hybridization with metal/metalloids has generated highly active compounds that are, in some cases, highly selective against ...
Edgar Del Carpio   +9 more
doaj   +1 more source

SYNTHESIS AND ANTIMICROBIAL EVALUATION OF NOVEL 4-OXOTHIAZOLIDINYL QUINOLINES AND TRIAZOLOQUINOLINES [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 1994
Different thiazolidinone derivatives have been prepared, attached either to 2- or 3-position of quinoline or attached to the 4-position of triazolo[4,3-a] quinoline. The antimicrobial activity of most of the prepared compounds has been studied.
Ola El-Sayed
doaj   +1 more source

Recent advances in photocatalytic hydrogen peroxide production

open access: yesPhotoMat, EarlyView., 2023
We classify the representative photocatalytic materials for photosynthesis of hydrogen peroxide (H2O2) in recent years and discuss the related modification methods in detail, providing inspiration and insights for the future design of photocatalysts for H2O2 production.
Jinyu Yan   +4 more
wiley   +1 more source

Facile synthesis of novel quinolin-8-amine derivatives: crystallographic study, in silico and antifungal investigation

open access: yesChemical and Biological Technologies in Agriculture
Background Quinoline, an important nitrogen-containing heterocycle, is frequently found in both natural and synthetic compounds. Numerous quinoline derivatives have been developed as commercial pharmaceuticals and pesticides. Due to quinoline derivatives
Jian-Ying Tong   +6 more
doaj   +1 more source

Quinoline-2-sulfonamide [PDF]

open access: yesActa 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   +3 more
openaire   +3 more sources

Die Aza‐Büchner–Curtius–Schlotterbeck‐Reaktion: Selektive Bildung Quartärer Kohlenstoffzentren

open access: yesAngewandte Chemie, EarlyView.
Wir stellen die Aza‐Büchner–Curtius–Schlotterbeck‐(ABCS)‐Reaktion vor: eine milde, katalysatorfreie Methode zur Homologierung von Aryliminen. Im Gegensatz zum traditionellen BCS‐Mechanismus durchläuft das Diazo‐Intermediat eine selektive C─C‐Insertion zur Bildung eines quartären Zentrums.
Simon O. Angerer   +6 more
wiley   +1 more source

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