Results 61 to 70 of about 4,172 (223)

Conformational Entropy as a Means to Control the Behavior of Poly(diketoenamine) Vitrimers In and Out of Equilibrium. [PDF]

open access: yes, 2020
Control of equilibrium and non-equilibrium thermomechanical behavior of poly(diketoenamine) vitrimers is shown by incorporating linear polymer segments varying in molecular weight (MW) and conformational degrees of freedom into the dynamic covalent ...
Christensen, Peter R   +8 more
core   +1 more source

Electro‐Mediated Redox Functionalization of Conjugated 1,3‐Dienes

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 6, 17 March 2026.
This review aims at providing a comprehensive view of the emerging field of electro‐mediated functionalization of conjugated 1,3‐dienes, highlighting key developments, mechanistic insights, and remaining challenges. It highlights the efficient use of electron as the sole reagent to access highly substituted allylic compounds from simple and readily ...
Ophélie Montiège   +3 more
wiley   +1 more source

Redox regulation of cell proliferation: Bioinformatics and redox proteomics approaches to identify redox-sensitive cell cycle regulators

open access: yes, 2018
Plant stem cells are the foundation of plant growth and development. The balance of quiescence and division is highly regulated, while ensuring that proliferating cells are protected from the adverse effects of environment fluctuations that may damage ...
Abo   +131 more
core   +1 more source

Six-membered ring systems: with O and/or S atoms [PDF]

open access: yes, 2013
A large variety of publications have emerged in 2012 involving O- and S-6- membered ring systems. The increasing number of reviews and other communica- tions dedicated to natural and synthetic derivatives and their biological significance highlights ...
Abe   +360 more
core   +1 more source

Easier, Safer, and Greener: Unlocking the Power of Solid Reagents in Organic Reactions by Mechanochemistry

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
This review highlights the powerful synergy between mechanochemistry and solid reagents to replace hazardous substances traditionally used in organic synthesis. Such an approach offers a safer and more sustainable pathway for conducting organic reactions, with potential benefits in both reactivity and selectivity. The use of solid bases, acids, and gas
Adrien Gallego   +4 more
wiley   +1 more source

A general enantioselective route to the chamigrene natural product family [PDF]

open access: yes, 2010
Described in this report is an enantioselective route toward the chamigrene natural product family. The key disconnections in our synthetic approach include sequential enantioselective decarboxylative allylation and ring-closing olefin metathesis to form
Grubbs, Robert H.   +4 more
core   +2 more sources

Synthesis, spectroscopic and crystal structure analysis of 2-amino-5,5-dimethyl-7-oxo-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile and-3-carboxamide [PDF]

open access: yes, 2009
The preparation of 2-amino-5,5-dimethyl-7-oxo-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide via the intermediate 2-amino-5,5-dimethyl-7-oxo-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile is described, along with details of the crystal structure ...
Begum, N.S.   +4 more
core   +1 more source

Exploring Isophorone‐Based Dienones: Comprehensive Insights Into Their Synthesis, Reactivity, and Diverse Applications

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
Isophorone is an important motif in synthetic organic chemistry, as it is highly reactive and can get involved in a diverse array of functional group transformations to access various synthetic intermediates and molecular targets. In this context, an important group of compounds is the conjugated or nonconjugated isophorone‐cored dienones, which are ...
M. Saeed Abaee   +2 more
wiley   +1 more source

Synthesis of Heterocyclic Compounds Derived From Dimedone and Their Anti-tumor and Tyrosine Kinase Inhibitions

open access: yesActa Chimica Slovenica, 2020
The reaction of dimedone with arylaldehydes gave the benzylidene derivatives 3a–c, the latter underwent a series of heterocyclization reactions to give fused thiophene, pyrazole isoxazole and pyridazine derivatives.
Rafat Mohareb   +2 more
doaj   +1 more source

NaHSO4–SiO2 Promoted Solvent-Free Synthesis of Triazolo [1,2-a]indazole-triones [PDF]

open access: yesInternational Journal of New Chemistry, 2014
A new one-pot, efficient three-component condensation of dimedone, urazole and aromatic aldehydes in the presence of silica supported sodium hydrogen sulfate as an effective heterogeneous catalyst for the synthesis of novel Triazolo[1,2-a]indazole-1,3,8 ...
Hossein Anaraki-Ardakani
doaj   +1 more source

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