Results 131 to 140 of about 23,538 (226)

Photochemistry of Fundamental Nitrogen Containing Aromatic Heterocycles

open access: yes, 2018
This thesis describes studies into gas-phase photochemistry of nitrogen containing heterocycles, together ion-trap mass spectrometers and tunable nanosecond laser light sources.
James P Bezzina (20168343)
core  

HIGHLIGTHS IN 1,2,3-DITHIAZOLE CHEMISTRY

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2010
Among the five-membered heterocycles containing nitrogen and sulphur atoms, 1,2,3-dithiazoles are important compounds due to their unusual physical properties, biological activity and versatile chemistry.
Valérie Thiéry   +6 more
doaj  

Nitrogen containing heterocycles as potential inhibitors of serine proteinase [PDF]

open access: yes, 1991
Some nitrogen heterocycles such as pteridines and quinazolines undergo "covalent hydration" - the reversible addition of water across a C=N bond. Alcohols and other nucleophiles can also add across this C=N bond.
Perera, Madri Yasoja
core  

Flame‐Retardant Quasi‐Solid‐State Electrolytes From Self‐Assembled Azolate Hybrid Frameworks for Highly Safe Lithium Batteries

open access: yesAngewandte Chemie International Edition, EarlyView.
This work develops a spray‐assisted in situ assembly technique to construct AHF materials with nitrogen/oxygen‐regulated one‐dimensional channels on glass fiber, providing abundant active sites and enabling rapid transport for lithium ions. Subsequently, phosphate flame retardants are encapsulated via in situ polymerization, resulting in a thermally ...
Shun Wang   +9 more
wiley   +1 more source

RETRACTED: Fluorescent and Phosphorescent Nitrogen-Containing Heterocycles and Crown Ethers: Biological and Pharmaceutical Applications.

open access: yesMolecules, 2022
Ullah F   +8 more
europepmc   +1 more source

New Method Development to Streamline the Synthesis of N-Heterocycles

open access: yes, 2017
Nitrogen-heterocycles are an important class of molecules because of its widespread availability in pharmaceuticals, natural products and organic electronic materials.
Navendu Jana (1312224)
core  

DIHYDRODIPYRIDOPYRAZINES: SYNTHESIS AND FUNCTIONALIZATION

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2010
Different conceptual synthetic approaches to the elaboration of a new family of planar polynuclear nitrogen containing aromatic heterocycles – the dihydrodipyridopyrazines – are reviewed: the arynic reaction, the sequence palladium coupling reaction ...
Gérald Guillaumet   +4 more
doaj  

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