Results 31 to 40 of about 49,782 (284)

A sustainable thermochemical conversion of animal biomass to N-heterocycles

open access: yesJournal of Leather Science and Engineering, 2023
The production of high-valued organonitrogen chemicals, especially N-heterocycles, requires artificial N2 fixation accompanied by the consumption of fossil resources.
Yang Tang   +5 more
doaj   +1 more source

Synthesis of α‐Trifluoromethylated Nitrogen Heterocycles. [PDF]

open access: yesChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Ségolène, Gille   +3 more
openaire   +2 more sources

Preparation of Antimicrobial Nitrogen Heterocycles Using Sustainable Processes

open access: yesProceedings, 2017
Libraries of compounds containing heteroaromatic rings and other nitrogen heterocycles were [...]
Concepción C. González   +4 more
doaj   +1 more source

Oxetanes: Recent Advances in Synthesis, Reactivity and Medicinal Chemistry [PDF]

open access: yes, 2016
The 4-membered oxetane ring has been increasingly exploited for its behaviors, i.e. influence on physicochemical properties as a stable motif in medicinal chemistry, and propensity to undergo ring opening reactions as a synthetic intermediate.
Bull, JA   +4 more
core   +1 more source

Heteroelement Analogues of Benzoxaborole and Related Ring Expanded Systems

open access: yesMolecules, 2021
The review covers the chemistry of organoboron heterocycles structurally related to benzoxaboroles where one of the carbon atoms in a boracycle or a fused benzene ring is replaced by a heteroelement such as boron, silicon, tin, nitrogen, phosphorus, or ...
Krzysztof Nowicki   +2 more
doaj   +1 more source

Direct introduction of nitrogen and oxygen functionality with spatial control using copper catalysis. [PDF]

open access: yes, 2018
Synthetic chemists have spent considerable effort optimizing the synthesis of nitrogen and oxygen containing compounds through a number of methods; however, direct introduction of N- and O-functionality remains challenging.
Fisher, David J   +4 more
core  

Silver and platinum-catalysed addition of O–H and N–H bonds to allenes [PDF]

open access: yes, 2014
Transition-metal catalysed nucleophile addition to allenes is a very powerful tool for the synthesis of functionalised molecules containing heteroatoms, heterocycles in the intramolecular version, or allyl derivatives in the intermolecular version.
Munoz-Herranz, Maria
core   +1 more source

Transparent UV‐Curable Self‐Sanitizing Coatings Applicable to Diverse Surfaces and High‐Touch Screens to Mitigate Deadly Pathogen Transmission

open access: yesAdvanced Functional Materials, EarlyView.
Development of a transparent, self‐sanitizing antimicrobial coating technology applicable to a wide range of materials and surfaces‐including touchscreens, transparent substrates, and metal, plastic, and glass‐regardless of pathogen type. The spray‐coated, UV‐cross‐linked imidazole‐based quaternary ammonium chloride materials provide broad‐spectrum ...
Surjith Kumaran   +6 more
wiley   +1 more source

Alkylene-functionality in bridged and fused nitrogen-rich poly-cyclic energetic materials: Synthesis, structural diversity and energetic properties

open access: yesDefence Technology
From the standpoint of chemical structures, the organic backbones of energetic materials can be classified into aromatic rings, nonaromatic rings, and open chains.
Man Xu   +4 more
doaj   +1 more source

Triggering redox activity in a thiophene compound: radical stabilization and coordination chemistry [PDF]

open access: yes, 2006
The synthesis, metalation, and redox properties of an acyclic bis(iminothienyl)methene L− are presented. This π-conjugated anion displays pronounced redox activity, undergoing facile one-electron oxidation to the acyclic, metal-free, neutral radical L ...
Davison   +46 more
core   +2 more sources

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