Results 41 to 50 of about 5,225 (230)

Efficient cationic ring-opening polymerization of diverse cyclic imino ethers: unexpected copolymerization behavior [PDF]

open access: yes, 2011
The recently developed fast microwave-assisted cationic ring-opening polymerization procedure for 2-oxazolines seems to be ideally suited for slower polymerizing cyclic imino ether monomers.
Bloksma, Meta M   +6 more
core   +2 more sources

How does calcium-dependent intracellular regulation of voltage-dependent sodium current increase the sensitivity to the oxadiazine insecticide indoxacarb metabolite decarbomethoxylated JW062 (DCJW) in insect pacemaker neurons [PDF]

open access: yes, 2010
Decarbomethoxylated JW062 (DCJW), the active component of the oxadiazine insecticide (S)-methyl 7-chloro-2,5-dihydro-2-[[(methoxycarbonyl)[4-(trifluoromethoxy)phenyl] amino]carbonyl] indeno[1,2-e][1,3,4]oxadiazine-4a(3H)-carboxylate (DPX-JW062 ...
B. Lapied   +3 more
core   +3 more sources

Correction: Novel Synthetic Oxazines Target NF-κB in Colon Cancer In Vitro and Inflammatory Bowel Disease In Vivo. [PDF]

open access: yesPLoS ONE, 2017
[This corrects the article DOI: 10.1371/journal.pone.0163209.].
Anilkumar C Nirvanappa   +14 more
doaj   +1 more source

Chemical reactivity of ethyl 4-(1-ethyl-1,2-dihydro-4-hydroxy-2-oxoquinolin-3-yl)-2,4-dioxobutanoate towards some nucleophilic reagents

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2016
A novel series of heterocyclic systems linked with quinolin-2-one was efficiently synthesized from reaction of ethyl 4-(1-ethyl-1,2-dihydro-4-hydroxy-2-oxoquinolin-3-yl) -2,4-dioxobutanoate (1) with a variety of nitrogen and/or carbon nucleophiles.
Hany Hassanin   +2 more
doaj   +1 more source

Solid-Phase Synthesis of ɤ-Lactone and 1,2-Oxazine Derivatives and Their Efficient Chiral Analysis. [PDF]

open access: yesPLoS ONE, 2016
Derivatives of 3-methyl-3,6-dihydro-2H-1,2-oxazine-6-carboxylic acid prepared by regioselective hetero Diels-Alder reaction of arylnitroso compounds with sorbic acid were used for solid-phase synthesis of a library of derivatives that included ...
Sona Krupkova   +7 more
doaj   +1 more source

1,2,3-Triazole-4(5)-amines – Convenient Synthetic Blocks for the Construction of Triazolo-Annulated Heterocycles

open access: yesЖурнал органічної та фармацевтичної хімії, 2022
Aim. To analyze and summarize the synthetic potential of 1,2,3-triazole-4(5)-amines as efficient building blocks in the synthesis of triazolo-annulated pyridine, azine and azepine systems. Results and discussion.
Natalia O. Syrota   +3 more
doaj   +1 more source

Reductive Cleavage of 1,2-Oxazines Promoted by Zinc and Ammonium Chloride; Mild One Pot Preparation of γ-Hydroxy Ketones

open access: yesE-Journal of Chemistry, 2012
A facile method for a mild single pot reductive cleavage of 1,2-oxazines to γ-hydroxy ketones was developed using zinc and aqueous ammonium chloride as the reagent in methanol.
P. Sunil Kumar, K. M. Lokanatha Rai
doaj   +1 more source

Synthesis of 2-substituted benzimidazole, coumarin, benzo[b][1,4]oxazin and dihydropyrimidinone derivatives using core-shell structured Fe3O4@SiO2-ZnCl2 nanoparticles as an effective catalyst

open access: yesResults in Chemistry, 2020
In this paper, a magnetic nanocatalyst of Fe3O4@SiO2-ZnCl2 has been used which enhances the synthesis of benzimidazoles, coumarins, benzoxazines and dihydropyrimidinones. To begin with, 2-substituted benzimidazoles have been synthesized in proper to high
Saba Rahimi, Ebrahim Soleimani
doaj   +1 more source

Photoactive Nanomaterials Inspired by Nature: LTL Zeolite Doped with Laser Dyes as Artificial Light Harvesting Systems [PDF]

open access: yes, 2017
The herein reported work describes the development of hierarchically-organized fluorescent nanomaterials inspired by plant antenna systems. These hybrid materials are based on nanostructured zeolitic materials (LTL zeolite) doped with laser dyes, which ...
Bañuelos Prieto, Jorge   +2 more
core   +4 more sources

Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
wiley   +1 more source

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