Results 51 to 60 of about 13,481 (259)

T½ Tuning in a Synergistic BODIPY‐Tetrazole Fe(II) Spin‐Crossover‐Photoluminescence System via Co‐Ligand Variation

open access: yesChemistry – A European Journal, EarlyView.
We report a modular spin crossover‐photoluminescence (SCO‐PL) system: heteroleptic, mononuclear Fe(II) coordination compounds bearing equatorial BODIPY fluorophores that exhibit synergistic PL response upon spin state switching. Exchanging apical nitrile co‐ligands tunes electronic and structural properties, giving precise control over the SCO and PL ...
Martin Huber   +4 more
wiley   +1 more source

A Michaelis‐Arbuzov‐Type Pathway to a Protected 2ʹ‐Deoxy‐2ʹ‐Selenomethyl‐Adenosine‐3ʹ,5ʹ‐Phosphoroselenolate Guanosine Dinucleotide for Use in Modified m7G Cap Synthesis

open access: yesChemistry – A European Journal, EarlyView.
Here we report a synthesis of the dinucleotide 4 for a projected future total synthesis of the m7G cap 1. Highlights of the route include: 1) a 3ʹ‐H‐phosphonate/5ʹ‐selenocyanate Michaelis‐Arbuzov coupling to forge the 3ʹ,5ʹ‐phosphoroselenolate; 2) an Amosova reductive selenomethylation to install the 2ʹ‐SeMe; 3) a solid CPR II 5ʹ‐O‐phosphitylation; and
K. Lawrence E. Hale   +2 more
wiley   +1 more source

Synthesis of 1,5 and 2,5-disubstituted tetrazoles using NiO nanoparticles and their evaluation as antimicrobial agents [PDF]

open access: yesNanomedicine Research Journal, 2019
Treatments of tetrazolate salts prepared in situ from various aldehyde; malononitrile and sodium azide in the presence of NiO nanoparticles with benzyl bromide gave the corresponding 1,5- and 2,‌5-disubstituted tetrazoles.
Javad Safaei-Ghomi   +3 more
doaj   +1 more source

Chalcones as versatile synthons for the synthesis of 5- and 6-membered nitrogen heterocylces [PDF]

open access: yes, 2014
Chalcones belong to the flavonoid family which constitutes one of the major classes of naturally occurring oxygen heterocyclic compounds. The alpha,beta-unsaturated carbonyl system of chalcones possesses two electrophilic reactive centers allowing them ...
Albuquerque, Hélio   +3 more
core   +1 more source

Progress on the Application of Polymers of Intrinsic Microporosity for the Adsorption of Organic Contaminants

open access: yesChemistryOpen, EarlyView.
The pictorial illustration of the applications of polymers of intrinsic microporosity extraordinary porous organic polymers with high surface areas, pore radii, pore volumes, high permeability, high diffusivity, high selectivity, and high thermal stability, as suitable filters or purifiers for water contaminated with pharmaceutical and organic dyes ...
Martins O. Omorogie
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

open access: yesPolymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick   +2 more
wiley   +1 more source

Diazocarbonyl and Related Compounds in the Synthesis of Azoles

open access: yesMolecules, 2021
Diazocarbonyl compounds have found numerous applications in many areas of chemistry. Among the most developed fields of diazo chemistry is the preparation of azoles from diazo compounds.
Anton Budeev   +3 more
doaj   +1 more source

Epigenetic silencing and pharmacological inhibition of EIF5A2 foster venetoclax sensitivity in acute myeloid leukaemia

open access: yesBritish Journal of Haematology, EarlyView.
We show how the loss of activity of the translation initiation factor EIF5A2—either through gene hypermethylation or pharmacologic inhibition of its highly specific hypusine post‐translational modification—induces venetoclax sensitivity in acute myeloid leukaemia (AML) cells.
Eva Crespo‐García   +5 more
wiley   +1 more source

Facile synthesis of tetrazoles catalyzed by the new copper nano-catalyst

open access: yesGreen Chemistry Letters and Reviews, 2020
Despite various methods for preparation of tetrazoles, they are suffering from some disadvantages such as low yield, long reaction times and harsh reaction conditions, and there are still high demands to improve the common procedures to solve problems ...
Vahideh Khorramabadi   +2 more
doaj   +1 more source

Synthesis of N4-aryl-β-d-glucopyranosylcytosines: a methodology study [PDF]

open access: yes, 2015
A number of leaving groups, including arylsulfonates, triazoles, 3-nitrotriazoles, and tetrazoles, have been studied for the substitution reaction by aryl and alkyl amines at the 4-position of β-d-glucopyranosyluracils. Examination of the stability, ease
Eugenia Smyrli   +5 more
core   +1 more source

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